In those regions, a lot more black snakes would take cane toads that were put out for them to eat.
What makes it a cane toad?The cane toad, often referred to as the big neotropical toad or marine toad, is a sizable, terrestrial true toad that originated in South and mainland Central America. It has since been brought to a number of islands in Oceania, the Caribbean, northern Australia, and other places.
How did the cane toad get to Australia?The cane toad, which was first imported from Hawaii and released in Queensland as a biological control for sugar cane beetle pests, is now a well-established nuisance in its own right. Currently, cane toads can be found in Queensland, the Northern Territory, as well as Western Australia and New South Wales.
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The peritoneal cavity is located between the visceral peritoneum and the mesentery. True or false
The peritoneal cavity is located between the visceral peritoneum and the parietal peritoneum. So the statement is false.
What is the peritoneal cavity?The peritoneum is a serous membrane that covers the abdominal and pelvic organs and borders the walls of the abdominal cavity. The peritoneal cavity lies between its parietal and visceral layers. Abdominopelvic organs are supported and shielded by the peritoneum.
There are two layers to the peritoneum:
An external layer that is attached to the front and posterior abdominal walls is called the parietal peritoneum.A layer that lines the internal organs of the abdomen is called the visceral peritoneum. It is created when the parietal peritoneum rebounds from the viscera to the abdominal wall.Therefore the statement is false.
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What happens to the alcohol in a bulb thermometer as the temperature decreases?
Answer:
What happens to the alcohol in a bulb thermometer as the temperature decreases? As the alcohol cools down, the kinetic energy of the alcohol particles declines. When the alcohol particles move less, they move closer together, and the alcohol contracts.
Explanation:
Which of the following sensory receptors is incorrectly paired with its category? a. hair cell-mechanoreceptor b. muscle spindle-mechanoreceptor c. taste receptor-chemoreceptor d. olfactory receptor-electromagnetic receptor
Answer: B
Explanation:
Why do so many substances dissolve in water?
O It can completely surround individual molecules.
O It's a polar substance with positive and negative charges.
O It contains enzymes that break down other substances.
O Water molecules readily bond to other substances.
Answer:
Its a polar substance with positive and negative charges.
Explanation:
Because of its polarity and ability to form hydrogen bonds.
Why are phytoplankton, and not benthic algae or rooted aquatic plants, the dominant photosynthetic organisms of the oceanic pelagic zone? (See Figure 52.14 .)
An organism is referred to as photosynthetic if it participates in photosynthesis. Plants, algae, and cyanobacteria perform photosynthesis.
Photoautotrophs use light, specifically sunshine, to manufacture their food. In that they have chlorophyll and require sunlight to survive and thrive, microalgae, also known as phytoplankton, are comparable to terrestrial plants. Since it is mostly buoyant, phytoplankton floats in the upper layers of the ocean where sunlight penetrates the water. In order to transform these resources into proteins, lipids, and carbohydrates, they also require inorganic nutrients like nitrates, phosphates, and sulfur.The open sea area outside of the coasts or on the ocean floor made up of the water column is referred to as the pelagic zone. Pelagic fish live in the oceans below the continental shelf. Pelagic fish are those that live in the pelagic zone, hence their name.In the photic zone, which is quite shallow, plankton and a variety of fish species reside. Because water readily absorbs light and the ocean is deep, the majority of the ocean (the aphotic zone) is dark and devoid of life.Learn more about the Phytoplankton with the help of the given link:
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a neuron with an excitatory center-inhibitory surround receptive field will respond most when we stimulate .
A neuron with an excitatory center-inhibitory surround receptive field will respond most when we stimulate only the center. Stimulating middle and surround regions concurrently decreases responding of the neuron, as compared to stimulating the excitatory location alone. A receptive discipline that includes a more or less round excitatory location surrounded with the aid of using an inhibitory location, or a round inhibitory middle surrounded with the aid of using an excitatory surround.
Center-surround receptive discipline - receptive discipline wherein the middle of the receptive discipline responds otherwise to stimulation than the encircling part of the discipline.
There are number one forms of ganglion mobileular receptive fields: ON middle/OFF surround mobileular: Flashing small vibrant spot withinside the middle subregion will increase the mobileular's response. Flashing a vibrant annulus withinside the surround subregion inhibits the mobileular's response.
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Who is credited with being the father of the modern u. S. Wilderness conservation?.
Gifford Pinchot, the founding director of the U.S. Forest Service, was born on Saturday. He is referred to as the "father of conservation" and is credited with starting the conservation movement in the US by persuading people to protect the future by preserving the past.
The Sierra Club was founded by American naturalist John Muir (1838–1914), who is regarded as the grand father of conservation. He pushed to establish Yosemite National Park and protect the Sierra Nevada in California. Leopold joined the U.S. Forest Service after graduating from Yale and was placed in the Arizona Territories. During his time in office.
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Betty's metabolism has been irregular and she has been moody, tired, and weak. there is most likely an abnormality with her _____ gland.
According to the research, the correct option is thyroid. Betty's metabolism has been irregular and she has been moody, tired, and weak. There is most likely an abnormality with her thyroid gland.
What is thyroid gland?It is an organ located in the anterior region of the neck formed by two bilateral lobes and is responsible for producing hormones and regulating the body's sensitivity to them.
In this sense, it is responsible for multiple functions, among the main ones giving energy to the body, regulating metabolism, when there is an abnormality in this, problems of nervousness, muscle cramps, fatigue, weight loss, irritability, bowel movements usually occur.
Therefore, we can conclude that according to the research, the correct option is thyroid. Betty's metabolism has been irregular and she has been moody, tired, and weak. There is most likely an abnormality with her thyroid gland.
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Where are chromosomes that contain dna found? inside a person’s genes on the outside of a gamete in the nucleus of a cell around the double helix structure
The chromosomes that contain DNA are found inside the cell nucleus (in eukaryotic organisms).
What are chromosomes?The chromosomes can be defined as linear fragments of DNA of an organism that contain specific sequences of nucleotides that determine gene sequences and they are found within the cell nucleus.
Chromosomes are fragments of the genome, they are located in the cell nucleus where transcription of genes and subsequent use of these transcripts (mRNAs) during translation leads to the production of proteins.
In conclusion, the chromosomes that contain DNA are found inside the cell nucleus (in eukaryotic organisms).
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Answer:
nucleus
Explanation:
cause i said
Careful analysis of many types of organisms suggests that the amazingly complex camera-like eyes of vertebrates and cephalopod molluscs (octopuses and squids) formed through _______
Careful analysis of many types of organisms suggests that the amazingly complex camera-like eyes of vertebrates and cephalopod molluscs (octopuses and squids) formed through gradual refinement that occurred in both molluscs and vertebrates lineage to produce camera like structure in both molluscs and vertebrates.
The modern style of camera style eye of the vertebrate have evolved roughly 500 million years ago. The basic pattern of eyes are same in all vertebrates which is spherical structure fitted with cornea for passing light. It is complex structure consisting of retina, iris, ciliary body, optic nerves, etc.
Cephalopods are active marine predators which also have camera type structure which is very complex.
The similar eye structure in vertebrates and cephalopods are convergent in structure.
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briefly explain how an endonuclease (like cas9) compares to a restriction enzyme (like haeiii or bcli). what is a similarity? what is a difference?
In comparison , Cas9 is an endonuclease and is developed as an immunity mechanism against viruses, which are not considered restriction enzymes.
Talking about the similariites and differences, endonuclease is an enzyme by cleaving the internal covalent bonds linking nucleotides to break down a nucleotide chain into shorter chains, whereas the restriction enzyme, considered the restriction endonuclease can cleave DNA molecules into small pieces. Cas9 is an endo-deoxyribonuclease, it trims the DNA a little bit, from the cut site, one of the differences is that to identify the target sites in the DNA restriction enzymes doesn't have an RNA or a DNA as a tether. They can recognize the restriction sites by themselves through their DNA binding domains. Compare to restriction enzymes, the endonuclease can't cleave any DNA complementary to the guide RNA, they need the help of protospacer adjacent motifs adjacent sequences to the target site. The cleaving process occurs at a specific site called the restriction site, of the DNA molecule, where the site is composed of 4 to 8 base pairs. The restriction enzyme is all about all in one system whereas the endonuclease enzyme recognizes first and cleaves the latter, within a specific nucleotide sequence.
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How does the change in ACTH levels between 1:00 and 6:00 a.m. for the surprise protocol compare to that for the short and long protocols? Does this result support the hypothesis being tested? Explain.
The change in ACTH levels between 1:00 am and 6:00 am during the surprise protocol was comparable to the long protocols when compared to the short and long procedures.
The change in ACTH levels post-waking was assessed using samples collected at awakening and 30 minutes later. 15 healthy people in their mid-20s were observed by researchers over the course of three nights.
Every participant was informed whether they would be awakened at 6:00 or 9:00 am each morning. The participants went to bed at midnight. Both the "short" and "long" protocol groups were awakened simultaneously.
Humans produce more adrenocorticotropic hormone (ACTH) during the late stages of normal sleep, with the peak production occurring just before spontaneous awakening.
In response to stressful circumstances, the human body releases the hormone ACTH.
Based on the findings of the experiment, the long procedure for waking up was projected at 9 am, and the actual awakening time was 9 am. In a nutshell, the short protocol called for getting up at 6 am, and that's exactly when people actually woke up.
Therefore, nothing was altered. However, at 6:00 am, those involved in the surprise routine were awakened. At 9:00 am, they anticipated being startled and subjected to protracted processes.
The results suggest that ACTH secretion occurs before to actual awakening rather than at the time of expected waking.
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The glands that are saclike in structure and produce oily secretions that lubricate the skin are?
The glands that are saclike in structure and produce oily secretions that lubricate the skin are sebaceous glands.
Glands are the organs present in the body that produce and secrete some chemical substances. These chemical substances are necessary for various processes in the body. Glands can be of two types: Endocrine, which releases secretions directly into the blood and exocrine, that release secretions into some duct or opening.
Sebaceous glands are the exocrine gland that secrete a substance called sebum. Sebum is an soil, wax-like substance that functions to lubricate the hair and skin. The gland opens into the root of hair follicle and is present only in mammals. The maximum sebaceous glands are found in the scalp.
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According to anthropology, if humanity cannot be divided into a series of genetically distinct units, then?
According to anthropology, if humanity cannot be divided into a series of genetically distinct units, then the concept of human race will be biologically meaningless.
According, to the concept of human race that give the idea of the human species and said that human species is divided into distinct groups on the basis of the inherited physical and behavioral differences.
Their are 4 major races present in the world's population, that are white/caucasian, mongoloid/asian, negroid/black, and australoid. This racial classification was suggested by carleton S.
The human race was invented by european naturalists and anthropologists. The human race was initiated from the homo habilis, or handy mam.
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explain how high specific heat and expansion upon freezing sustain life
Life forms can keep relatively consistent interior temperatures because water has a high specific heat that makes them resistant to temperature changes. Water has a high boiling point due to its high specific heat and surface tension, which helps maintain its liquid for the majority of biological processes. Expansion upon freezing sustains life because Ice takes up more area than water because it expands (it is less dense). As a result, the ice floats on the water.
The specific heat capacity of a substance, also known as the massic heat capacity, is the heat capacity of a sample of the substance divided by the mass of the sample. Due to the thermal energy released by chemical processes within cells, specific heat aids in preventing organisms from overheating. When the outside temperature changes or rises, it aids organisms in maintaining a comparatively constant internal temperature.
Water crystallizes into an open hexagonal structure when it freezes, which accounts for the expansion that occurs. More room is there in this hexagonal lattice than in the liquid state. When water is cooled to a temperature of about 4 degrees Celsius, it begins to constrict as one would expect. It then gradually grows until it reaches the freezing point, at which point it freezes and expands by around 9%.
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A tough layer of vascular connective tissue, called the ______________________, covers the bone and is continuous with ligaments and tendons.
A tough layer of vascular connective tissue, called the Periosteum, covers the bone and is continuous with ligaments and tendons.
What is vascular connective tissue?It is a type of tissue that is accountable for the transportation in the animal's body. It is also anointed fluid connective tissue. It maintains continuity in the animal body by combining different parts of the body. It has two kinds, and they are blood and lymph.
What is an representative of vascular connective tissue?
Blood: It is a sticky, thick, and saltish vascular connective tissue. It is also named red vascular connective tissue because it is red-colored. It consists of two components that are blood cells and blood plasma.
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organisms that consume only plants are any/all of the following: group of answer choices first order heterotroph secondary consumer primary consumer second order heterotroph producer herbivore
First-order heterotrophs, primary consumers, and herbivores are the organisms that consume only plants.
The trophic level is a hierarchical position in a food chain or food web of an ecosystem. The organisms at a trophic level share similar feeding habits. There are generally three trophic levels:
1. First trophic level
This level comprises the primary producers or the green plants. They perform photosynthesis and use carbon dioxide and water for the synthesis of their food.
2. Second trophic level
The organisms of this level feed upon the organisms of the first trophic level. This means that they feed upon plants. These include primary consumers, herbivores, and first-order heterotrophs.
3. Third trophic level
The organisms of the third trophic level feed upon the organisms of the second trophic level. These include secondary consumers and second-order heterotrophs.
A heterotroph is an organism that does not prepare its food itself but is dependent on the other organism. First-order heterotrophs are thus primary consumers or herbivores that consume only plants.
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The sickle-cell allele most likely originated when a mutation occurred in a normal hemoglobin allele. If the trait arose in africa, where did it most likely originate?.
The mutation for sickle cell allele most likely originated in Congo (near Kinshasa).
Mutation refers to the change in nucleotide sequence of DNA during cell division in an organism. It can be beneficial or harmful for a population. Mutations for sickle cell allele were originated in Congo by altering a normal haemoglobin allele.
The mutation for the sickle cell allele originated in Congo near Kinshasa and provided a better chance of survival to heterozygous individuals for this allele. As this mutant allele was transferred to the next generations, it allowed them to survive and reproduce with better success and spread the mutation among the populations through migration.
This can be considered an example of natural selection where heterozygous individuals for sickle cell alleles had better chances of survival and reproduction. The heterozygous individuals with sickle cell allele exhibit resistance to malaria. When such individuals get affected by the malarial parasite, their RBCs tend to turn sickle and defend against malaria.
The sickle-cell allele most likely originated when a mutation occurred in a normal hemoglobin allele. If the trait arose in Africa, it most likely originated in Congo.
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Consider the effect of adding potassium or chloride channels to the membrane in (b). How would the membrane potential be affected in each case?
Potassium or chloride channels to the membrane in the resting membrane potential became less negative.
The passage of ions into and out of the cell and across the membrane is related to the way that impulses are conveyed along nerve cells, which are also referred to as neurons.
All ions are electrically charged, either negatively or positively. A potential is actually just a charge differential. As a result, the membrane potential is a voltage-based measurement of the differential in charge across the nerve cell membrane.
When the nerve cell is at rest and not transmitting an impulse, this charge differential is known as the resting membrane potential.
A nerve impulse is communicated via the passage of ions into the cell. Since a nerve impulse involves a change in charge brought on by the passage of charged ions into and out of a cell across a membrane, it is also referred to as a nerve action potential.
The resting membrane potential will become less negative as the number of potassium ions presents extracellularly rises.
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Define close circuit.
Answer:
closed circuit. noun. a complete electrical circuit through which current can flow when a voltage is appliedCompare open circuit.Answer:
A close circuit is a circuit that lets current go through it without stopping.
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the role of Ca²⁺ in the contraction of a skeletal muscle fiber and a smooth muscle cell.
Ca2+ is essential for the excitation-contraction coupling process in skeletal muscle fibres, which produces the action potential of the muscle fibre, as well as numerous other processes, including fibre type switching, myosin-actin cross-linking, protein synthesis, protein degradation, mitochondrial adaptations, plasticity, and respiration.
What is Skeletal and smooth muscles ?Your whole body weight is made up of 30 to 40 percent skeletal muscles. They are the muscles that attach to your bones and give you the range of motion and abilities. Since skeletal muscles are voluntary, you have control over when and how they contract.
The body contains smooth muscle, which performs a number of different tasks. It aids in digestion and nutrient absorption in the stomach and intestines. It is present throughout the urinary system, where it aids in maintaining electrolyte balance and detoxifying the body of pollutants.Learn more about Skeletal muscles here:
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many proteins are secreted from the cell following the process of translation. list two organelles involved in protein secretion, and briefly explain their contributions.
many proteins are secreted from the cell following the process of translation.the two organelles involved in protein secretion and their contribution are The rough endoplasmic reticulum modifies the proteins. The Golgi apparatus is involved in sorting, modifying, and packaging proteins. Vesicles transport the proteins to the plasma membrane and release them from the cell.
The endoplasmic reticulum is, in essence, the transportation system of the eukaryotic cell, and has many other important functions such as protein folding. It is a type of organelle made up of two subunits – rough endoplasmic reticulum, and smooth endoplasmic reticulum.here the Golgi apparatus, also known as the Golgi complex, Golgi body, or simply the Golgi, is an organelle found in most eukaryotic cells. Part of the endomembrane system in the cytoplasm, it packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination.to know more about Golgi apparatus click here
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Which structure acts like an invisibility cloak and protects bacteria from being phagocytized?.
Capsule structure acts like an invisibility cloak and protects bacteria from being phagocytized.
What is the composition of capsule?From bacterium to bacteria, the content of the capsule varies. Capsules include 98% water and 2% polysaccharide. Capsules are primarily made of polysaccharide. The lengthy strands of carbohydrates are called polysaccharides. Long carbohydrate chains are created by combining monomeric subunits. Different monomeric units bind to each other through glycosidic connections. They yield the monomeric elements that make up the polysaccharide unit upon hydrolysis.
Glycoproteins are a component of several bacterial capsules. The structure of glycoproteins is where the carbohydrate group is joined to the amino acids of proteins. Covalent bonds between carbohydrate groups and the polypeptide chain allow for attachment.
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When scientists were trying to determine the molecule that can transform non-virulent bacteria into virulent bacteria, they found that a cell extract treated with rnase could still transform the cells. Why was this?.
Answer:
This question seems to be a little confusing but we can say.
Explanation:
Only the RNas-treated extracts using heat-killed cells are incapable of turning nonvirulent bacteria towards virulent ones.
Scientists conducted an experiment to discover Griffith's "transforming principle," which describes how transformation is indeed a method of recombining, transmitting, or even transferring genetic information across organisms either from one species to the next. They did this by using heat-inactivated cells & purifying their transforming factor.
As in experiments conducted by the scientists, the pure cells did not provide favorable outcomes, but they did show transformants that were quite close to DNA. A scientist Avery, meanwhile, had his doubts that the outcome must be revised because the molecule did not contain DNA. This happens due to the transforming principle being unaffected by RNA degrading enzymes, whereas the only one cell extracts that can prevent the transformation of non-virulent bacteria onto virulent bacteria are those that have been treated with RNas.
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Why is a temperature of 106 dangerous?
Answer:
Hyperpyrexia, or fever of 106°F or higher, is a medical emergency. If the fever is not lowered, organ damage and death can result.
Explanation:
Answer: A fever of 106°F or higher, is very dangerous because if it is not lowered, organ damage and death can result.
Explanation:
An individual is hospitalized due to complications from copd and pneumonia. the antibiotics administered resulted in acute renal failure. what abg result is possible?
The ABG result would be the renal failure build up metabolic acidosis
How does arterial blood gas work?One of the examinations used to identify COPD is an arterial blood gas test. The test determines your blood's oxygen content (O2) as well as how well carbon dioxide (CO2) is expelled. Your blood's pH can also be calculated using this method. It is possible to assess respiratory conditions, kidney function, and the body's metabolism by measuring imbalances in the levels of oxygen, carbon dioxide, or pH. (the process by which our body converts food into energy that can be used right away or stored in the liver, muscles and body fat).
The buildup of acid inin the body due to kidney disease or kidney failure called metabolic acidosis.
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What is the population growth rate from 1850 to 1970?
SCIENCE, TECHNOLOGY, AND SOCIETY Extensive irrigation in arid regions causes salts to accumulate in the soil. (When water evaporates, salts that were dissolved in the water are left behind in the soil.) Based on what you learned about water balance in plant cells, explain why increased soil salinity (saltiness) might be harmful to crops.
Water leaves the plant cells and they become flaccid.
What happens when salt enters into the cells?We know that osmosis refers to the movement of solvent from the region where the solvent molecules are at lower concentration, the the region where the solvent molecules are at higher concentration across a semipermeable membrane.
Now, the cells have water in them. When salt gets into the cell, the salt becomes more concentrated (hypertonic) than the cell. This would make water to leave the cell and get into the incoming salt water.
As such, as water leaves the plant cells, the plant cells would become flaccid.
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Telomerase activity is most likely to be found in which cells in humans? red blood cells muscle cells neurons germ line any type of somatic cell
Telomerase activity is most likely to be found in which cells in humans in germ cells.
In humans, telomerase activity refers to the life stages of a man's body.
The role of telomerase is really crucial in humans as it plays a key role in the growth of tumors and the immortalization of cells.
During the development phase, the activity is highly regulated and controlled.
Moreover, it also provides stability to the genome cells in highly immortal and tumor cells by maintaining the uprightness of the chromosomes.
It also plays a very critical role in aging and cell fate.
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If you made Jupiter the size of a marble, how would that change the size of the Earth? Sun?
Answer:
It would change the size of both the planets and make them smaller
Explanation:
If you make Jupiter's size into a marble, then you would have to make both of the planets smaller size as well. It would change the size of the sun by a lot, but it would still have to be bigger than Jupiter. The earth is different tho since it's way smaller than Jupiter in its normal size. So the earth would be super smaller than marble.
If you were to scale down Jupiter to the size of a marble, it would have a diameter of roughly 1.39 centimeters (or about 0.55 inches).
What are the planets?The relative diameters of the Earth and the Sun do not alter appreciably, even when Jupiter's size is drastically shrunk to that of a tiny pebble.
The enormous scale disparity between the celestial bodies in our solar system is highlighted by the Sun, which is still considerably larger than both Earth and the marble-sized Jupiter as shown
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