The statement 'the genome of prokaryotes is contained within the cell's chromosome and plasmids' is true.
In the field of science, prokaryotes can be described as organisms that lack a well-defined nucleus. Other membrane-bound organelles are also absent in a prokaryotic cell.
The bacterial chromosome contains genetic material as a single molecule referred to as a chromosome. This genetic material is present inside the nucleoid region. Prokaryotes have extrachromosomal rings which are referred to as plasmids. The plasmids of a prokaryote are present distinctively from the chromosome of the prokaryote.
The plasmid of prokaryotes has the ability to replicate independently. It is due to the characteristics of a plasmid that it is being used widely today as a vector in recombinant DNA technology.
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Which statement best describes an example of how society influences science and engineering?
The statement that best describes an example of how society influences science and engineering is the Government's funded research to reduce the spread of mosquito-borne illnesses. The correct option is D.
What is science?Science is a subject that unravels the secrets of nature and the universe. They study all things about the earth.
Engineering is a subject that works for things that are made of dimensions. They are of different branches like electrical, mechanical engineering, etc.
Therefore, the correct option is D. Government's funded research to reduce the spread of mosquito-borne illnesses.
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The question is incomplete. Your most probably complete question is given below:
A. People who prevent mosquito bites by using mosquito netting have a lower risk of illness.
B. Many people believe the benefits of using genetically modified organisms outweigh the risks.
C. Researchers found that the Aedes aegypti species of mosquito was responsible for transmitting diseases such as malaria.
D. Government's funded research to reduce the spread of mosquito-borne illnesses.
lichens are ? group of answer choices mutually beneficial relationships between fungi and plant roots. symbiotic associations between photosynthetic organisms and fungi. a type of plant pathogen. single-celled, flagellated protist ancestors of fungi. a type of marine eukaryote.
Answer:
symbiotic associations between photosynthetic organisms and fungi
Explanation:
The membrane-bound organelle that contains enzymes and oxygen used to oxidize organic material is the.
The membrane-bound organelle that contains enzymes and oxygen used to oxidize organic material is the Peroxisomes.
Peroxisomes are organelles that include a variety of oxidative processes and are crucial for metabolism, the detoxification of reactive oxygen species, and signalling. Fatty acid -oxidation is one of the β-oxidative pathways housed in peroxisomes and is involved in embryogenesis, seedling growth, and stomatal opening.
The impairment of peroxisome function is caused by a diverse range of inborn metabolic abnormalities known as peroxisomal diseases. Most frequently, this leads to varied degrees of neurologic impairment. Here, the main peroxisomal diseases will be discussed.
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You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine amino acids occur at regular intervals. What is the significance of this finding in regards to tertiary structure?.
Answer:
Disulfide bridges, which aid in the formation of the protein's tertiary structure, require cysteine residues.
Explanation:
A singular peptide chain and protein secondary structural features make up a protein's three dimensional or tertiary structure. A protein's tertiary structure is controlled by side chain connections and bonding.
Disulfide bridges, which are created by cysteine, join the pieces of a polypeptide chain together. Regarding their fundamental structure, such fragments can frequently be found at great distances from one another. Therefore, a protein's three-dimensional form is its tertiary structure.
Disulfide bridges are crucial for keeping the protein's three-dimensional- dimensional or tertiary structure. In an oxidizing atmosphere, disulfide production is promoted, but in a reductive environment, this disulfide bridge might be destroyed.
WHAT MAKES CYSTEINE DIFFERENT?
since its side chain contains a highly reactive sulfhydryl component. As a result, cysteine occupies a unique location and cannot be taken by another amino acid because the disulfide bridges that cysteine residues create are a constant part of the core structure of proteins.
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MIkhail is trying a new cookie recipe. He wants to see if the amount of baking powder he used will make the cookies rise more, He makes three batches of cookies and changes the amount of baking powder for each batch.
1.what is the independent variable?
2.what is the dependent variable?
3.what are 2 things that must remain constant for this experiment?
Answer:
Independent variable is the one that is being chanted, which is the baking powder,
Dependent variable is the variable affected by the change, which is if the cookies will rise more
2 things that must remain constant for this experiment, is the temperature of the room, and the baking powder (you could make these up, for example you could say they have to be made in the same environment, and so on)
Explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day :)
Explain how the code in your dna relates to your physical appearance as well as the functioning of your body. How might a change in this code impact the body?.
The code in our DNA relates to our physical appearance as well as functioning because it makes the proteins of the body.
It is through the process of central dogma that the DNA transcribes into mRNA. Each mRNA transcript gets translated into different proteins having different functions to perform in the body.
It is due to the formation of these proteins that our physical appearance and functions in the body are maintained. For example, a part of the DNA will be coding for proteins that are structural proteins. These structural proteins maintain our appearance, structure, pigmentation, hair color and type etc. Other proteins would be involved in other functions such as antibodies for generating an immune response.
A change in the code of the DNA can lead to altered proteins being formed. The proteins made by changing of code will be different. A change in the code can lead to the occurrence of diseases.
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Jenny sees that her mom smokes a cigarette to relax whenever she gets stressed, so she thinks that it will work for her too. this is an example of?
Jenny sees that her mom smokes a cigarette to relax whenever she gets stressed, so she thinks that it will work for her too. This is an example of
social learning.
In the field of psychology, social learning can be described as a theory that represents that a person learns a certain action by observing and mimicking it from others. The cognitive process of learning causes a person to observe others and replicate what they are doing.
For social learning, a person carefully observes what the other person is doing, has the ability to remember the behavior and reproduce it by themselves. The person is motivated that a certain action will benefit him in some way.
In the scenario above, Jenny observes that her mother gets relaxed after smoking a cigarette. Jenny wants to copy this action herself in order to get relaxed in stress situations, hence this is an example of social learning.
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What two factors likely contribute to the evolution of semelparity versus iteroparity?
The two factors likely contribute to the evolution of semelparity versus iteroparity are survival rate of offspring and likelihood of adult surviving to reproduce again.
Briefing :Low survival rate of children in unstable conditions results in semelparity if preferred. Environments with stability: iteroparity is preferred
Adults have a lower survival rate in unpredictable or changing surroundings; however, if they have a large number of offspring, there is a better chance that some of them will live.
Adults are more likely to survive and procreate in stable surroundings, which increases competition and leads to the production of few but large offspring and increased parental care.
How does iteroparity differ from semelparity?Any living things have two different reproductive options : semelparity and iteroparity. A species is categorized as a iteroparous if it experiences several reproductive cycles throughout semelparous if it only displays one reproductive event before dying, and otherwise.
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using an example, briefly explain why homeostasis often involves more than one body system
Answer:
your heart need your brain to tell it to pump but your brain needs blood from your heart to tell it to pump
Explanation:
The brain must signal to the heart to beat nonetheless, the heart must pump the blood for the brain to receive the signal.
What is homeostasis?Any self-regulating mechanism called homeostasis helps biological systems maintain stability while responding to environmental factors that are best for survival. If homeostasis is achieved, life goes on; if it is not, tragedy or death results. The stability obtained is actually a dynamic equilibrium, where circumstances are mostly uniform yet change is constant.
Any system that is in dynamic equilibrium will eventually establish a stable balance that is resistant to external pressures of change. When such a system is upset, built-in regulatory mechanisms react to the deviations to restore equilibrium; this is an example of feedback regulation. Examples of homeostatic control include all integration and coordination activities, whether they are carried out by electrical circuits, neurological systems, or hormonal systems.
The operation of a thermostat, also known as a room-temperature regulator, is a well-known illustration of homeostatic control in a mechanical system. A bimetallic strip at the thermostat's core completes or breaks an electric circuit in response to temperature fluctuations.
The circuit is closed as the chamber cools, the furnace fires up, and the temperature rises. The circuit breaks, the furnace shuts off, and the temperature falls to a certain level. In comparison to such mechanical devices, biological systems are more complicated and contain regulators that are only loosely analogous.
Therefore, the brain must signal to the heart to beat nonetheless, the heart must pump the blood for the brain to receive the signal.
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A fishing spider walks along the surface of water to hunt for tadpoles.
Which characteristic of water does the spider take advantage of?
A. adhesion
B. hydrogen bonds
C. universal solvent
D. cohesion
Answer: D. Cohesion
Explanation:
I took the test. Have a lovely day folks <3
Answer:
Just took the test got a 5/5 on it.
Explanation:
Picture down bellow
What data point should Gomer disregard as it looks like an error occurred when it was collected?
a. Point A
b. Point B
c. Point C
d. Point D
An athlete's cells can become too hot to function properly. Which of these processes will best return the cells to normal?
A
Cytokinesis
B
Endocytosis
C
Transpiration
D
Homeostasis
The dimples trait exhibits strict dominant-recessive inheritance. therefore, how many phenotypes are possible for this trait?
The dimples trait exhibits strict dominant-recessive inheritance. therefore, two phenotypes are possible for this trait.
If you have dimples, chances are good that you inherited them from one of your parents. Dimples are caused by a small indentation in the muscle that controls the cheek. This indentation is usually present at birth and is thought to be caused by a genetic mutation.
Dimples are considered to be a dominant trait, meaning that if one parent has dimples, there is a good chance that their children will also have dimples. In fact, the dimples trait exhibits strict dominant-recessive inheritance, which means that two phenotypes are possible for this trait: either you have dimples or you don't. However, if both parents have dimples, then their children will also have dimples.
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a cell has eight chromosomes in g1 of interphase. how many chromosomes will be found in anaphase of mitosis?
you want to calibrate your microscope in order to take photos with in scale measurements of the organisms that you are viewing. the second dot on the calibration slide is 0.75mm to how many µm does that equate?
The value in micrometers is 7.5 * 10^2 µm.
What is the value in µm?We know that it is possible to convert from one unit to another by the use of conversion factors. The conversion factor must be dimensionally correct in order to work and help us to make the required conversions.
Now we must first convert from millimeter to meter using;
0.75 mm * 1 m/1000 mm
Then we have the value as 7.5 * 10^-4 m
Then we convert to micrometer
7.5 * 10^-4 m * 1 * 10^6 µm/1 m
=7.5 * 10^2 µm
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What is the mean number of clams per sample?
Answer:
Is there more to this question?
Explanation:
The mean number of clams per sample is the average quantity of clams across all collected samples.
To calculate the mean number of clams per sample, sum up the total number of clams from all samples and then divide by the total number of samples. This provides an overall average representation of clams in each sample.
Mean serves as a measure of central tendency, providing insight into the typical clam count. It helps researchers understand the general clam population, aiding in statistical analysis and drawing meaningful conclusions. Mean offers a balanced view of the distribution, accounting for both large and small clam counts.
In ecological or scientific studies, understanding the mean number of organisms per sample assists in assessing population health, resource availability, and ecological dynamics, offering a snapshot of the studied ecosystem's condition and stability.
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Under what circumstances could ions flow through an ion channel from a region of lower ion concentration to a region of higher ion concentration?
Active transport is used by the cells for the accumulation of required molecules. This type of transport is energy-dependent. The movement of molecules is against the gradient.
What is Active Transport?Active transport is the movement of molecules or ions across the cell membrane from its lower concentration to its higher concentration. This movement is favored by energy in the form of ATP.
The two main types of active transport includes: Primary Active Transport and Secondary Active Transport. Primary Active Transport involves the direct use of ATP while the Secondary Active Transport involves coupling of molecules with other molecules moving along an electrochemical gradient.
Therefore, Active transport is involved in the movement of substances against the concentration gradient.
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How many molecules of DNA are in the prometaphase drawing? How many molecules per chromosome? How many double helices are there per chromosome? Per chromatid?
There are 12 molecules of DNA in the prometaphase of mitosis, 2 moles of DNA per chromosomes, 2 DNA double helices per chromosomes and 1 DNA per chromatid.
Prometaphase is the eukaryotic cell division stage that occurs between prophase and metaphase. The cell's chromosomes have compacted during prophase, and the centrosome, or microtubule organizing center, has split and relocated to opposing ends of the cell. Several important events occur during prometaphase, including the disintegration of the nuclear envelope and the attachment of microtubules to each chromosome.
Proteins that remove certain compounds from nuclear membranes are released at the start of prometaphase. The membranes disintegrate in the absence of the chemical. They will be re-joined before the cell is totally split into two new cells during telophase.
The breakdown of the nuclear membrane permits microtubules to bind to the chromosomes. Sister chromatids can bind to one other because chromosomes have unique areas associated with proteins. These areas are referred to as centromeres. Each chromosome's centromere has other specialized regions called kinetochores that facilitate microtubule attachment. Microtubules, which originate in the centrosomes at each end of the cell, form a matrix known as the spindle apparatus that runs throughout the cell.
Microtubules of various sorts are found in the spindle apparatus. The kinetochore microtubules go from one side of the chromosome to the other. Motor proteins have the ability to transport things along microtubules. Furthermore, the microtubule organizing center, or centrosome, can add or remove monomers from the microtubule, so increasing or decreasing its total length.
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If r_Inst is doubled, predict how the population growth rates will change for the four population sizes given in question 1. Now calculate the population growth rate for the same four cases, this time assuming that r_Inst = 2.0 (and with K still =1,500 ).
The population growth rate for the same four cases rate will double.
ΔN/Δt = rinst N (K-N) / K
1,510(1,500-1,510)/1,500 = -20
1,600(1,500-1,600)/1,500 = -213
1,750(1,500-1,750)/1,500 = -583
2,000(1,500-2,000)/1,500 = -1,333
Population growth rate :The annual increase in the number of people worldwide is roughly 83 million, or 1.1%. By 2020, there will be 7.9 billion people on the planet, up from 1 billion in 1800.
To commemorate this achievement, the 7 Billion Actions global campaign was established. From 7.7 billion today to 9.7 billion in 2050, and possibly reaching a peak of over 11 billion people in 2100, the world's population is projected to grow by 2 billion people over the next 30 years.
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researchers investigating the regulation of neurotransmitter release from presynaptic neurons proposed a model
Researchers investigating the regulation of neurotransmitter release from presynaptic neurons proposed a model is GFP* contained in synaptic vesicles moved into the synaptic cleft by exocytosis.
To move chemical messages from one neuron to the following target cell is their function. The following target cell may be a gland, muscle, or another nerve cell.A postsynaptic neuron sends signals away from the synapse, whereas a presynaptic neuron sends signals toward a synapse. The synapse, a juncture where the terminal end of an axon touches another neuron, is where information is transmitted from one neuron to another.Similar to other organelles, synaptic vesicles have related membrane proteins such synapsins, cysteine string proteins, and rab proteins as well as monotopic and polytopic proteins. It is striking how many proteins in synaptic vesicles have four transmembrane areas.To learn more about neurotransmitter.brainly.com/question/9556454
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If you removed the ZPA from a limb bud and then placed a bead soaked in Sonic hedgehog in the middle of the bud, what would be the most likely result?
Imagine planting a Sonic Hedgehog bead in the center of the bud after it has been wet. The developing limb in that instance would most likely be a mirror-image duplicate, with the most anterior digits at each end and the most posterior digits in the middle. As a result, a mirror-image duplicate would arise.
A complex signaling network that regulates tightly regulated developmental processes in multicellular organisms is the Sonic Hedgehog (Shh) signaling cascade. Lower concentrations of Shh in a bead will result in a reaction like that seen after a tissue transplant.
Let's say a mirror-image limb is produced when the Sonic Hedgehog is injected into the front portion of a conventional limb bud. The studies with mice also demonstrate that the sonic hedgehog can produce additional toes in a region of the limb bud where it is often absent.
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The prefrontal cortex is an example of a(n) _____ area of the cerebral cortex because it is involved in higher-level thinking rather than primary motor or sensory functions.
According to the research, the correct option is association. The prefrontal cortex is an example of association area of the cerebral cortex because it is involved in higher-level thinking rather than primary motor or sensory functions.
What is the prefrontal cortex?It comprises a set of neurons that cluster in the most anterior part of the frontal lobe, to fulfill functions related to working memory, thinking and the control of some emotional states.
In this sense, it is considered an association area since it controls emotions that include aggression, as well as participates in thinking, problem solving, decision making, and information from other brain areas.
Therefore, we can conclude that according to the research, the correct option is association. The prefrontal cortex is an example of association area of the cerebral cortex because it is involved in higher-level thinking rather than primary motor or sensory functions.
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Select the correct answer from each drop-down menu.
is an element found in all organic molecules. During respiration, animals excrete it as a gas known as
Answer:
Carbon moves from living things to the atmosphere.
Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants get rid of carbon dioxide gas through a process called respiration.
Explanation:
Carbon is the element found in all organic molecules. During respiration, animals excrete carbon dioxide as gas.
What is respiration?Respiration is a metabolic process that occurs in all living organisms. In respiration, oxidation of organic carbon compounds occurs which results in the production of carbon dioxide, water, and energy.
Respiration is of two types aerobic and anaerobic respiration. In aerobic respiration oxidation of organic compounds takes place in presence of oxygen whereas, In anaerobic respiration, oxygen is absent. For example, alcohol fermentation is anaerobic respiration and glycolysis is aerobic respiration.
In respiration, living organisms take oxygen in and respire carbon dioxide out along with the evolution of energy.
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Is it necessary to have sugar in our body?
Answer:
It is necessary.
Explanation:
We need sugar to put in our cells. The insulin breaks the sugar from our blood to do so. Sugar is very important that's why people with diabetes type 1 eat a little bit more than others because they need the sugar, but too much sugar is also bad, so you need a control of it.
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How does the Bohr shift help deliver O₂ to very active tissues?
The condition of the active tissues permits the Bohr effect to efficiently enhance the offloading of oxygen to functional tissues. The active tissues exhibit localized elevated partial pressure, resulting in increased carbon dioxide and decreased pH.
The amount of carbon dioxide and oxygen is determined by the ventilation's rate and depth. Compared to oxygen, carbon dioxide has a lower affinity for hemoglobin.PaCO₂ represents the plasma's dissolved carbon dioxide. When both are present, the hemoglobin binds to oxygen instead of carbon dioxide due to affinities. Near the cells, the carbon dioxide concentration is high.Reduced blood pH or higher carbon dioxide levels result in a weaker affinity of oxygen for hemoglobin.The Bohr effect is the decrease in hemoglobin's affinity for oxygen caused by an increase in carbon dioxide's partial pressure. A change in the oxygen hemoglobin dissociation curve results from this action.The functioning of the active tissues, such as the skeletal muscles, requires a constant supply of oxygen. The localized partial pressure of carbon dioxide rises as a result of the tissue's continuous activity.The blood's pH level drops when carbon dioxide levels rise, which lessens hemoglobin's affinity for oxygen. Therefore, the Bohr effect occurs when tissues are more active, and increased carbon dioxide liberation results in a drop in blood pH and increased oxygen unloading.Learn more about the Bohr shift with the help of the given link:
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for ambient temperatures within the thermoneutral zone of an endotherm, a decrease in environmental temperature leads to increased vasoconstriction without a change in metabolic rate.
For ambient temperatures within the thermoneutral zone of an endotherm, a decrease in environmental temperature leads to increased vasoconstriction without a change in metabolic rate : True.
In mammals, the link between temperature and metabolic rate is direct. Ectotherms, as well as endotherms, as well as endotherms, are both impacted by cold temperatures, however, endotherms experience an increase in metabolism as a consequence of increased movement to stay warm, whilst ectotherms experience a drop in metabolism as a result of cold temperatures.
A body's response to temperatures just below thermal neutral zone, known as cold stress, would be a property shared by all endotherms. When the outside temperature falls underneath an animal's thermal neutral zone, the metabolic rate of the body increases, resulting in thermogenesis, which raises body temperature.
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We can represent atoms by listing the number of protons, neutrons, and electrons-for example, 2p⁺, 2n⁰, 2e⁻ for helium. Which of the following represents the ¹⁸O isotope of oxygen? a. 7p⁺, 2n⁰, 9 e⁻ b. 8p⁺, 10n⁰, 8 e⁻ c. 9p⁺, 9n⁰, 9 e⁻ d. 10p⁺, 8 n⁰, 9 e⁻
We can represent the number of electron, protons and neutrons in O18 isotope of oxygen as 8p+, 10n0, 8e-.
Isotopes are the elements that have same number of electrons and protons but different number of neutrons. For example oxygen have three isotopes three isotopes O18, O17, and O16. Each of the isotope have same number of electrons and protons i.e. 8 but have eight, nine and ten neutrons.
The number of electron and protons are always equal in an atom. So the number of neutrons can be found out by subtracting the atomic mass with the number of protons or electrons.
Hence the option 8p+, 10n0, 8e- is the correct option.
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which branch of biotechnology involves the use of biological processes as part of chemical production
Answer:
White biotechnology involves the use of biological processes as part of chemical production.
Explanation:
White biotechnology, also known as industrial biotechnology, focuses on utilizing live cells as well as enzymes to develop products that may be readily broken down, produce less waste, and use less energy throughout manufacture. Utilizing microorganisms to produce chemicals, creating new polymers and fabrics, and creating new, renewable energy sources like biofuels are examples of white biotech. Enzymes and microbes are used in white biotechnology to create significant compounds from renewable energy. Moreover, white biotechnology offers useful ingredients for the food, medicinal, and agricultural sectors to some other industries. The benefits of biotechnology benefiting health and medicine are what makes it so significant. Scientists have developed new medications using genetic engineering, or even the carefully controlled change of genetic material, such as synthetic insulin, hormones for growth etc.
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What is carbon presented as in the atmosphere?
Answer: Carbon dioxide
Explanation:
Many viruses are pathogens of animals and plants (see Concept 19.3). How might the presence of pathogens alter the carrying capacity of a population? Explain.
The effects of pathogens may raise the risk of sickness and mortality if a community is overcrowded. Thus, diseases can lower a population's long-term carrying capacity.
What exactly do pathogens mean?A pathogen is an organism that causes disease in its host, and virulence describes how severe a disease's symptoms are.. Pathogens include viruses, bacteria, unicellular and multicellular eukaryotes, as well as other taxonomically diverse organisms.
Which three pathogens are examples?Pathogens are organisms that infect the body and can harm health. They include viruses, bacteria, fungus, and parasites. The pathogens that cause significant diseases include, among many others, anthrax, HIV, the Epstein-Barr virus, and the Zika virus.
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