Scientists studies the significance of abiotic versus biotic (meals supply) habitat features as drivers of delta smelt abundance and distribution.
Protective and coping with special reputation fish species requires an understanding in their ecology and habitat. Delta smelt is an annual fish species endemic solely to the euryhaline part of the San Francisco Estuary, California.
It's miles listed as a threatened species with the aid of the U.S. Fish and natural world service and as an endangered species through the country of California. Information the ecology of delta smelt is important to the management of California's water deliver. Delta smelt has gone through a considerable lengthy-term decline in abundance for the reason that Nineteen Sixties main to its listing even as water exported from the Bay-Delta.
Substances approximately 25 million people in California and a multi-billion greenback agricultural enterprise in California's significant Valley. handling water operations at the same time as protective delta smelt habitat is a key management goal within the estuary.
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The living things, including animals, that make up an ecosystem are referred to as biotic components. The members of the food web, or biotic components, in an ecosystem, depend on one another to survive. These living things interact with one another and have an impact on the ecosystem's health. The other species that live there make up the biotic components in an ecosystem. Depending on the type of creature, they might have different effects on different organisms. Predators, parasites, prey, symbionts, competitors, and parasites are examples of other organisms (biotic factors). The most significant biotic component in an ecosystem is a producer. Living creatures have an impact on environmental organisms either directly or indirectly. This covers the actual creatures as well as other living things, interactions between them, and even their trash.
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Which of these ecosystems has the lowest net primary production per square meter? a. a salt marsh b. an open ocean c. a coral reef d. a tropical rain forest
An open ocean has the lowest net primary production per square meter.
An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors. Along with rocks, temperature and humidity are abiotic variables. Every component of an ecosystem is directly or indirectly dependent upon every other component. An ecosystem's temperature changes frequently have an impact on the types of plants that may flourish there, for example. Animals who rely on plants for food and refuge will need to relocate to a different ecosystem to adapt to the changes.
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this biome contains plants that are adapted to prevent water loss due to the low average rainfall and high temperatures year-round. savanna savanna boreal forest boreal forest tropical rain forest tropical rain forest desert
The biome that contains plants that are adapted to prevent water loss due to the low average rainfall and high temperatures year-round is desert (option D).
What is a desert?A desert is a barren area of land or desolate terrain, especially one with little water or vegetation.
A desert is characterized by the relatively low amount of rainfall and intense temperature per year, hence, there is little growth of plant life.
The few plants that are adapted to survive in the desert or arid region are specially equiped to do do. Some of the structural adaptations to desert conditions by plants are as follows:
Waxy cuticleReduction of leaves to spines Deep tap rootsTherefore, the biome that contains plants that are adapted to prevent water loss due to the low average rainfall and high temperatures year-round is desert.
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5.if a farmer sprays a pesticide onto a field and kills half of the insect pests, he has caused a reduction in________.
If a farmer sprays a pesticide onto a field and kills half of the insect pests, he has caused a reduction in population size.
The number of organisms of a particular species in an area is referred to as the population size. Each species of organism present in an area will have a different population size.
A species that has better traits to adapt to an ecosystem will have a greater population size.
A pesticide is a substance that is used to kill pests. Farmers use pesticides in their fields to protect crops from pests such as insects.
If a farmer sprays a pesticide that reduces the insect pest population to half, then this means that the population size of the insect pest has reduced.
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A substance that is recognized as foreign or nonself is? 1. immunoglobulins. 2. lymphocytes 3. antibodies. 4. antigens
A substance that is recognized as foreign or non-self is antigens; option 4
What is the immune system?The immune system is a system in the body whose primary function is to defend the body against attack or invasion from foreign agents which are more likely than not to cause diseases.
In some instances though, some foreign agents recognized by the body may not be disease-causing agents.
The components of the immune system include the following:
immunoglobulinslymphocytesantibodiesAntibodies are proteins that protect you when foreign agents enters your body. Antibodies usually bind to antigens which are foreign substances.
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Having a complete set or sets of chromosomes is called ________. euploid diploid aneuploidy monoploid ploidy
Having a complete set or sets of chromosomes is called euploid
aneuploidy is a circumstance that exists when an organism gains or loses one or greater chromosomes but now not a whole haploid setThe failure of one or extra pairs of homologous chromosomes or sister chromatids to separate usually during nuclear division, commonly ensuing in an bizarre distribution of chromosomes within the daughter nuclei. is known as non disjunction. Nondisjunction at some point of either meiosis I or II within the female gameteMonosomy s the precise term that describes the loss of a single chromosome (2n - 1)Aneuploidy is the condition that exists when an organism gains or loses one or more chromosomes but now not a entire haploid setTo know more about euploid visit : https://brainly.com/question/22271293
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Based on the tree below, which statement is not correct? a. The salamander lineage is a basal taxon. b. Salamanders are a sister group to the group containing lizards, goats, and humans. c. Salamanders are as closely related to goats as to humans. d. Lizards are more closely related to salamanders than to humans.
The statement that is not correct is that lizards are more closely related to salamanders than to humans.
What are lizards?Lizards belong to the group of reptiles that belongs to the animal kingdom that share an ancestor with snakes. They are animals that have a long body and skin covered with lamellae like scales. Among the lizards we know are iguanas, chameleons, lizards, and geckos.
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Based on the tree below, which statement is not correct?
a. The salamander lineage is a basal taxon.
b. Salamanders are a sister group to the group containing lizards, goats, and humans.
c. Salamanders are as closely related to goats as to humans.
d. Lizards are more closely related to salamanders than to humans
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Nadh and fadh2 carry high energy electrons from the other stages of respiration to the electron transport chain. What does the electron transport chain use these electrons to do?.
Some of the energy of the high-energy electrons is captured as they travel along the chains. This energy is used to move hydrogen ions (from NADH and FADH2) from the matrix into the intermembranous region through the inner membrane.
The last phase of aerobic respiration is electron transport. In this phase, energy from the Krebs cycle products NADH and FADH2 is converted to ATP.
NADH and FADH2 release high-energy electrons that travel through electron transport chains similar to those utilized during photosynthesis. The electron transport chains are located on the inner membrane of the mitochondrion. Some of the energy of the high-energy electrons is captured as they travel along the chains. Hydrogen ions (from NADH and FADH2) are pumped over the inner membrane and into the intermembrane space using this energy.
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Protein channels that are situated between cells create small pores for the passage of small substances are known as?
According to the research, the correct option is gap junctions. Protein channels that are situated between cells create small pores for the passage of small substances are known as gap junctions.
What are gap junctions?They are molecular complexes made up of connexins as channels or connection structures between cells that allow the passage of small molecules and electric current.
In this sense, these channel structures formed by proteins allow the adaptive responses of differentiated cells and the synchronization of cell function, the transmission of the electrical impulse, among many other biological activities.
Therefore, we can conclude that according to the research, the correct option is gap junctions. Protein channels that are situated between cells create small pores for the passage of small substances are known as gap junctions.
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Reactions that use energy to drive the synthesis of molecules inside the cell are most specifically considered.
Answer:
Anabolic
Explanation: easy question just study please
What would happen if all of the hemoglobin contained within the rbcs became free in the plasma?
If all of the hemoglobin contained within the RBCs became free in the plasma, it would significantly increase blood osmolarity; option D.
What is osmolarity of a solution?The osmolarity of a solution is a measure of the number of particles present in a given volume of solution.
Osmolarity is a measure of the concentration of particles in a given solution.
An increase in dissolved particles will raise the osmolarity of a solution.
In the cell, proteins, ions, and carbohydrates contributes to the osmolarity of the cell.
Hemoglobin is a protein which is found within the red blood and whose function is to transport oxygen in the body.
Therefore, if all of the hemoglobin contained within the RBCs became free in the plasma, the osmolarity of plasm will increase.
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Note that the complete question is given below:
What would happen if all of the hemoglobin contained within the RBCs became free in the plasma?
a)It would considerably increase blood oxygen carrying capacity.
b)It would facilitate delivery of oxygen into tissues supplied by small capillaries.
c)It would facilitate oxygen diffusion into cells distant from blood capillaries.
d)It would significantly increase blood osmolarity.
e)It would drastically increase osmotic colloid pressure.
The medicinal use of foxglove to make the drug digoxin (lanoxin) is an example of a modern drug derived from ________. a. an animal b. a mineral c. a plant d. a trace element
The medicinal use of foxglove to make the drug digoxin (lanoxin) is an example of a modern drug derived from a plant and is denoted as option C.
What is Foxglove?This refers to a herbaceous perennial plants which has tubular blooms comprising of different colors and are important due to its health benefits in the body.
This plant is used in the production of drugs such as digoxin which is very effective in the treatment of different types of heart diseases. Since foxgloves have features such as root, flowers etc then it is a plant and is the reason why it was chosen as the correct choice.
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Explain how nitrogen and phosphorus, the nutrients that most often limit primary production, are necessary for the Calvin cycle to function in photosynthesis (see Concept 10.3).
The importance of nitrogen and phosphorus to the Calvin cycle reducing equivalent NADPH and the energy molecule ATP.
What is the role of nitrogen and phosphorus in the Calvin cycle?The Calvin cycle is a cycle which consists of light-independent chemical reactions that convert carbon dioxide and hydrogen carried by hydrogen transfer compounds into glucose.
The steps of the Calvin cycle are:
carbon fixation,reduction, andregenerationThe role of nitrogen and phosphorus is that they are part of the reducing equivalents NADPH which donates hydrogen for the reduction of carbon dioxide in the Calvin cycle and ATP which provides energy that drives the reactions.
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On average, all cells are approximately the same size whether they are found in elephants or beetles. what is the best explanation for why cells are so small?
The best explanation for why cells are so small in all organisms regardless of the taxonomic group is that this size optimizes homeostasis by the exchange of nutrients and waste products with the media.
Why cells are so small?The cells are so small in all organisms regardless of the species because they need to optimize the exchange of material with the surrounding environment, which allot to maintain the state of internal equilibrium.
In conclusion, the best explanation for why cells are so small in all organisms regardless of the taxonomic group is that this size optimizes homeostasis by the exchange of nutrients and waste products with the media.
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you are estimating the time since the divergence of two species and used hemoglobin for your molecular clock. you would like to get independent support for your estimate. if you also use cytochrome c, which result do you expect?
The number of amino acid differences between the two species will be fewer for cytochrome c than for hemoglobin.
What can be utilized as a molecular clock to estimate the time since organisms diverged from a familiar?
A molecular watch uses DNA sequences (or the amino acid sequence of proteins that DNA encodes) to calculate how long it has been since related species separated from a common ancestor
Why does hereditary drift have more of an impact on the evolution of small peoples than large ones?
Small populations tend to lose hereditary diversity more quickly than large populations due to stochastic sample error (i.e., genetic drift). This is because some interpretations of a gene can be lost due to accidental chance, and this is more likely to occur when residents are small.
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Complete Question is,
a) The number of amino acid differences between the two species will be the same for both genes.
b) The number of amino acid differences between the two species will be fewer for hemoglobin than for cytochrome c.
c) The number of amino acid differences between the two species will be fewer for cytochrome c than for hemoglobin.
After surgical removal of an infected gallbladder, a person must be especially careful to restrict dietary intake of a. starch. b. protein. c. sugar. d. fat.
d. fat The removal of the gall bladder will have an influence on the generation of bile, which will affect fat digestion because bile is essential for breaking down large fat molecules and commencing digestion.
What are the risks of having one's gallbladder removed?Leakage of bile
However, once the gallbladder is removed, bile fluid may occasionally flow into the belly (abdomen). Belly ache, feeling nauseous, a fever, and a distended tummy are all symptoms of a bile leak.
After gallbladder surgery, eating the incorrect foods can cause discomfort, bloating, and diarrhoea. To avoid stomach discomfort, avoid high-fat or spicy meals such as French fries and potato chips. Meats high in fat, such as bologna, sausage, and ground beef
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What does an ecosystem contain that a community does not?
OA. Biotic factors
OB. Multiple species
OC. Abiotic factors
OD. Multiple organisms
SUBMIT
An ecosystem includes both biotic (living) and abiotic (non-living) factors such as water, air, soil, temperature, and sunlight, whereas a community refers only to the multiple species of living organisms in a particular area. The correct option is C.
What is an ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems. Plants, animals, and other species are biotic factors.
An ecosystem contains abiotic factors that a community does not. An ecosystem includes both biotic factors (living organisms like plants, animals, and microorganisms) and abiotic factors (non-living elements like temperature, water, sunlight, and soil).
In contrast, a community only consists of the various interacting species (biotic factors) within a specific area, without considering abiotic factors.
Therefore, the correct option is C.
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Systems biology is mainly an attempt to a. analyze genomes from different species. b. simplify complex problems by reducing the system into smaller, less complex units. c. understand the behavior of entire biological systems by studying interactions among its component parts. d. build high-throughput machines for the rapid acquisition of biological data.
Systems biology is mainly an attempt to:
a. analyze genomes from different species.
b. simplify complex problems by reducing the system into smaller, less complex units.
c. understand the behavior of entire biological systems by studying interactions among its component parts.
d. build high-throughput machines for the rapid acquisition of biological data.
Option c) is the correct option.
What do you understand by Systems biology?
Systems biology is responsible for some of the most important developments in the science of human health and environmental sustainability. It is a holistic approach to deciphering the complexity of biological systems, based on the understanding that the networks that make up the whole of living organisms are more than the sum of their parts. It collaborates, integrating many scientific disciplines—biology, computer science, engineering, bioinformatics, physics, and more—to predict how these systems change over time and under different conditions, and to develop solutions to the world's most pressing health and environmental problems.To learn more about Systems biology, refer to:
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The human nature level of personality analysis addresses how every human being is, in certain respects, ________.
The human nature level of personality analysis addresses how every human being is, in certain respects like all others.
What is the human nature?In psychology, the human nature has to do with the generality of the attitudes that make us human. This includes the ideologies and the tendencies that underlie our shared humanity.
Hence, the human nature level of personality analysis addresses how every human being is, in certain respects like all others.
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Which of the following is not an accurate statement? a. Hormones are chemical messengers that travel to target cells through the circulatory system. b. Hormones often regulate homeostasis through antagonistic functions. c. Hormones of the same chemical class usually have the same function. d. Hormones are often regulated through feedback loops.
The following is not an accurate statement
c. Hormones of the same chemical class usually have the same function.
Usually, the function of hormones belonging to the same chemical class is the same.
Chemicals called hormones function as messenger molecules that travel through the bloodstream. From the glands where they are created to cells in various regions of the human body, hormones convey chemical information. The cellular mechanisms that regulate stress, appetite, growth, sleep cycles, blood sugar can be turned on or off by these chemical messengers.
Hormones play a crucial role in the body's ability to operate properly. They regulate how the organs work and have an impact on their development, sexuality, and reproduction.
In addition, hormones have an impact on how the body consumes and stores energy as well as controls fluid balance and blood sugar and salt levels.
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What does a human being , plants, mushrooms and fish have about them that makes them different
Answer:
biological differences such as, different appearances, and different functions. mushrooms are a fungi and they break down/decompose dead plants and such. fish eat algae and other fish. and humans eat plants, and animals. we all do different things. think about it can a mushroom walk, can a fish walk? humans breath air, mushrooms make air, and fish breath oxygenated H2O
If you consciously forced more air out of your lungs each time you exhaled, how would that affect the values shown in the figure?
When you inhale (breathe), air enters your lungs, and the oxygen in that air flows to your blood. Carbon dioxide, a waste gas, flows from your blood to your lungs at the same moment and is expelled (breathed out).
What causes air to exit the lungs during forced expiration?The second step is exhalation, or breathing out. The diaphragm relaxes as the lungs evacuate, lowering the volume of the thoracic cavity while raising the pressure within it. The lungs tighten as a result, and air leaves.
Exhalation relaxes the diaphragm and causes it to return to its domelike shape, pushing air out of the lungs.
Exhaling causes your diaphragm to relax and move up into your chest cavity. Carbon dioxide-rich air is forced out of your lungs and windpipe, and then out your nose or mouth, as the space in your chest cavity reduces.
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The gross domestic product of India in 2009 was $1,236,000,000,000($1.236 trillion).how much in dollars was produced per person
$1070 dollars was produced per persons.
India's population measured in 2009 was 1.155 billion.
In order to determine the GDP in dollar produced per person, the total GDP of the country measured needs to be divided by the total population of the country .
Here, total GDP of India is $1.236 trillion.
Hence GDP per person in dollars is 1.236/1.155 =$1070.
What is meant by the GDP and how it is measured?
GDP measures the money value of final goods and services—that is produces in a financial year , those that are bought by the final user—produced in a country in a given period of time .It counts all of the output created within the boundaries of a country.
How GDP of India is calculated?India's GDP is measured with two different methods, one on economic activity , and the second on expenditure . The factor cost method examines the performance of eight different industries.
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Why can only some patients with diabetes insipidus be treated effectively with ADH?
A patient with untreated diabetes insipidus has hyposecretion of ADH due to damage to person's hypothalamus or pituitary gland.
What is hyposecretion?An endocrine gland's hyposecretion is frequently brought on by the death of its hormone-secreting cells. As a result, insufficient amounts of the hormone are released. Type 1 diabetes is an illustration of this, in which insulin-secreting pancreatic cells are attacked and destroyed by the body's immune system. Insulin injections are typically used to treat this kind of diabetes.
Why is ADH only beneficial for some patients with diabetic insipidus?As ADH is produced by the brain's hypothalamus and kept in the posterior pituitary gland. The amount of water is constantly balanced and regulated by ADH. When ADH is disrupted, the kidneys eliminate too much fluid from the body, increasing urine output and urination. Blood sugar levels in diabetes insipidus are normal.
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20pts i need this for an essay.
Think about the role of both biotic and abiotic factors within an ecosystem.
Describe a scenario in which one abiotic or biotic factor is added or removed from an ecosystem.
Explain the possible side effects on that ecosystem.
Be sure to –Address the prompt, provide support, and conclude your thoughts.
Answer:One abiotic factor that could have a side affect on the ecosystem is air.One biotic factor that would have side effect on the ecosystem would be plants.
Explanation:
How much kinetic energy does a 50 kg object have it is
moving at a velocity of 1 m/s?
J
Do not Include units in your answer.
The power an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed. Answer - [tex]25[/tex]
Kinetic energy has the following formula:
K.E. = [tex]\frac{1}{2} mv^{2}[/tex], where m is the object's mass and [tex]V[/tex] is its square velocity. The kinetic energy is measured in kilograms-meters squared per second squared if the mass is measured in kilogram and the velocity is measured in metre per second.
Solution :
Mass (m)= [tex]50 Kg[/tex]
Velocity (v) = [tex]1\frac{m}{s}[/tex]
Kinetic Energy = [tex]0.5 mv^{2} J[/tex]
= [tex]0.5*50*1^{2}[/tex]
= [tex]25[/tex]
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is area a statistical test
Answer:
A statistical hypothesis test is a method of statistical inference used to decide whether the data at hand sufficiently support a particular hypothesis.
Explanation:
What are the different aspects of statistical testing?
The null hypothesis test determines if the data’s values fall outside the range predicted through the null hypothesis. In this article, we will discuss the different aspects of statistical tests, including the selection of parametric and nonparametric tests to understand the statistical testing in detail.
How do you interpret statistical test statistics?
Interpreting test statistics For any combination of sample sizes and number of predictor variables, a statistical test will produce a predicted distribution for the test statistic. This shows the most likely range of values that will occur if your data follows the null hypothesis of the statistical test.
What is the p-value of a statistical test?
Statistical tests work by calculating a test statistic – a number that describes how much the relationship between variables in your test differs from the null hypothesis of no relationship. It then calculates a p-value (probability value).
What are the assumptions when selecting a statistical test for data?
Before selecting a statistical test for the collected data, it is important to meet certain assumptions and understand the types of variables used in the study. The first assumption about the data is that the observations or variables included in the data are not related.
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When a hospital-physician relationship is established, a physician becomes part of the medical staff based on what criteria?
A physician becomes part of the medical staff based on the successful completion of a prescribed credentialing process.
A physician, also known as a medical practitioner, medical doctor, or simply a doctor, is a person who works in the medical field. When a hospital-physician relationship is established, a physician becomes part of the medical staff.
Medicine is the study, diagnosis, prognosis, and treatment of illness, injury, and other physical and mental impairments to promote maintain, or restore health. In general practice, doctors take on the role of providing ongoing and comprehensive medical care to people, families, and communities, while focusing their practice on certain disease categories, patient types, and treatment modalities (known as specialties).
To practice medicine effectively, one must have a thorough understanding of the academic fields, such as anatomy and physiology, underlying disorders, and how to treat them—the science of medicine—as well as a respectable level of proficiency in the art or craft of medicine.
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Plants use statoliths to detect gravity (see Figure 39.22). How do plants and animals differ with regard to the type of compartment in which statoliths are found and the physiological mechanism for detecting their response to gravity?
In animals, detection is done by mechanoreceptors on hair cells. In plants, this mechanism seems to involve calcium signaling.
Briefing:In animals, the statoliths are extracellular. In contrast, the statoliths of plants are found in an intracellular organelle. Their location detection methods are also different. In animals, detection is done by mechanoreceptors on hair cells. In plants, this mechanism seems to involve calcium signaling.
What is the statoliths in plants?A group of membrane-bound starch granules (see amyloplast) in plant cells is thought to act as a gravity sensor. Starch stators are found in root tip cells and tissues near the vascular bundle of shoots; Under the action of gravity, they sink to the bottom of the cell.
What is the function of statoliths?The statoliths are thought to regulate the transport of the growth hormone, auxin, by acting on specific auxin transporters, the PIN proteins.
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Which of the following best describes the logic of scientific inquiry? a. If I generate a testable hypothesis, tests and observations will support it. b. If my prediction is correct, it will lead to a testable hypothesis. c. If my observations are accurate, they will support my hypothesis. d. If my hypothesis is correct, I can expect certain test results.
If my hypothesis is correct, I can expect certain test results. It describes the best logic of scientific enquiry.
What best represents the methodology of scientific research?The six steps of the scientific method are as follows: 1) asking a question about what you see, 2) doing background research to find out what is known about the subject, 3) formulating a hypothesis, 4) conducting experiments to test the hypothesis, 5) analyzing the results of the experiment, and 6) coming to conclusions.
There is an example of scientific enquiry that is to determine how four fertilizer affect the growth rate of bean plants. So, the option d will be correct.
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Some disease-causing microbes attack the body by turning on or off specific signal transduction pathways. In the disease cholera, the bacterium vibrio cholerae causes massive diarrhea by interfering with such a pathway. A toxin from this bacterium enters intestinal cells and chemically modifies g proteins. Once modified, the g proteins can no longer cleave gtp into gdp. What would you expect to see within the intestinal cells of a person with cholera?.
The G proteins in the interstitial cells of a person with cholera remain activated and continually activate adenyl cyclase.
Signal transduction pathways allow binding of extracellular signalling molecules (like epinephrine) to the cells to respond to environmental signals of any stress like attach of a pathogen. The adrenal glands release a hormone called epinephrine in response to the disease-causing microbes. These hormones attach to the receptors on the cell surface and promote a response. The disease causing microbes turn this pathway on to respond to the attack.
Vibrio cholerae is a gram-negative bacteria that causes cholera in humans. It affects the interstitial cells of the small intestine by producing a toxin called choleragen. Choleragen attaches to the cell membrane and traps the G-protein in its active state. Active G-protein activates adenyl cyclase that stimulates the production of cyclic AMP molecules. cAMP activates protein kinase A (PKA) that activates chloride-ion channels and blocks sodium-hydrogen antiporters. This results in the loss of sodium chloride and water into the lumen and causes watery diarrhea.
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