Answer:
a
Explanation:
i took the test
What does the suffix "-trophic" mean?
Answer:
Food or Nutrition
Explanation:
which symptom would most likely occur in an organism exposed to tetrodotoxin?
Why do you think so many people are ignorant on the topic of overpopulation and it's effects? Please answer in one paragraph (: thanks
Answer: Human overpopulation is among the most pressing environmental issues, silently aggravating the forces behind global warming, environmental pollution, habitat loss, the sixth mass extinction, intensive farming practices and the consumption of finite natural resources.
Answer:
I think they are ignorant because they don't understand what overpopulation can do to the world. Meaning overpopulation can cause less jobs for people. Less food to go around.
Explanation:
Which factor can influence chemical weathering? Select all 3 that apply.
chemicals in runoff water
wind
acid rain
plants
The amount of rainfall and the temperature can influence how quickly rocks weather and plants. The pace of chemical weathering is accelerated by high temperatures and heavier acid rain.
Rainwater reacting with mineral grains of rocks to create new minerals (clays) & soluble salts is known as chemical weathering.
Chemical weathering can take many different forms, including solution, hydration, carbonation, oxidation, reduction, & biological. Corrosion is not a form of chemical weathering, therefore. Chemical weathering can take many various forms, including hydration, hydrolysis, carbonation, oxidation, reduction, & chelation. Rust, which results from oxidation, and acid rain, which is brought on when carbonic acid dissolves rocks, are two instances of chemical weathering. Rocks and minerals break down to generate soil as a result of other chemical weathering processes like dissolution.The amount of rainfall and the temperature can influence how quickly rocks weather and plants. The pace of chemical weathering is accelerated by high temperatures and heavier acid rain.
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does atoms of the same elements have the same number of pruton
Answer:
all atoms of element have the same amount of protons
Explanation:
Many different types of mutations can occur within the body. Sickle cell anemia is a disease that occurs when a mutation in a base pair of the hemoglobin beta gene causes a single replacement of the amino acid glutamic acid by the amino acid valine. As a result of this mutation, the individual’s blood cells take on a sickle shape under certain conditions and form clusters that can block blood vessels and cause organ damage.
The mutation of sickle cell anemia. Red blood cells.
Which type of mutation causes sickle cell anemia?
silent
missense
insertion
Answer:
B. Missense
Explanation:
The supporting function in the cell is performed by:
a. EPR
b. cellular centre
c. centriole
d. microfilaments
The supporting function in the cells is performed by the centriole. Centrioles are the paired barrel-shaped organelles. Thus, the correct option is C.
What is a centriole?Centrioles are the paired barrel-shaped organelles which are located in the cytoplasm of the animal cells near nuclear envelope. Centrioles are responsible for playing a major role in the organization of microtubules that serve as the cell's skeletal system. Centrioles help in the determination of locations of the nucleus and other organelles which are present within the cell.
Centrioles are responsible for the organization of spindle fibers in the mitotic spindle apparatus and are also found to participate in the completion of cytokinesis during cell division.
Most of the centriole molecules are made up of nine circularly arranged triplet microtubules. In this, a triplet microtubule has a complete microtubule that is the A-tubule onto which the other two additional partial microtubules are assembled that is the B- and the C-tubules, respectively.
Therefore, the correct option is C.
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How do thermouses know whether or not to keep food hot or cold?
Answer:
A thermos keeps cold things cold in the same way. It doesn't contain some kind of cooling device. The same vacuum that keeps hot things hot keeps cold things cold. Heat that might otherwise transfer to the cold contents of the thermos is prevented from reaching it because of the vacuum between the thermos walls.
Today's thermoses are constructed much more sturdily than those in the past. The first thermoses featured metal exteriors with glass interior walls. These thermoses often ended up getting broken when accidentally dropped.
Using the terms solar radiation and terrestrial radiation, explain the heating of the earth by the
sun.
Solar power is referred to as solar radiation. The amount of solar energy that reaches the earth is referred to as insolation. The radiation that the planet emits is known as terrestrial radiation.
How does the earth's atmosphere maintain its temperature?A tiny amount of radiation from the Earth's surface and the warmed upper atmosphere both radiate into space. The majority of the longwave radiation produced warms the lower atmosphere, which then warms the surface of our planet.
Does terrestrial radiation heat the atmosphere effectively?Therefore, long wave terrestrial radiation is primarily responsible for warming the atmosphere. The majority of the energy that reaches the earth's surface is in short wavelengths. Incoming solar radiation, often known as insolation, is the name for the energy that the earth receives from the sun.
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Is it a scientific theory or a scientific law that the characteristics of living things change over time?
Answer:
Scientific Theory
Explanation:
The statement "the characteristics of living things change over time" refers to the concept of biological evolution, which is widely accepted as a scientific theory in the field of biology. In scientific terms, a theory is a well-substantiated explanation of a natural phenomenon that is supported by extensive evidence, experimentation, and scientific consensus. The theory of evolution, proposed by Charles Darwin and further developed over time, provides a comprehensive explanation for the diversity and change in the characteristics of living organisms. It is supported by a vast body of evidence from various scientific disciplines, including genetics, paleontology, comparative anatomy, and molecular biology.
In contrast, scientific laws describe observable patterns or regularities in nature that are often expressed as mathematical equations or principles. Laws, such as Newton's laws of motion or the laws of thermodynamics, describe specific relationships or behaviors in the physical world.
Therefore, the statement about the characteristics of living things changing over time aligns with the theory of evolution, rather than being described by a scientific law.
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Uncontrolled cell growth in a person's body can restrict the normal functioning of the surrounding cells. This
situation is known as
O transcription
cancer
O genetic drift
on
O translation
Answer:
the uncontrolled growth of cells is known as cancer
Physiology is the study of the structure of the body.
Answer:
Anatomy is the study of the structure of the body, Physiology is not.
Answer:
yes
Explanation:
Why does blood appear to be red?
Answer: Hemoglobin
Explanation:
Explain how depression arises from a combination of both genetic and environmental factors.
Depression arises from a combination of both genetic and environmental factors because there are genes associated with these behavioral traits while environmental inputs may trigger depressive situations (e.g. a traumatic situation).
What is a complex multifactorial trait?A complex multifactorial trait is any phenotypic feature or behavior condition which is controlled by genes, the environment and also the interaction between genes and the environment.
Depression is a condition that may be categorized as a complex multifactorial behavioral condition because there are genes associated with this trait and also environmental triggers may lead to a depressive state such as occurs with traumatic situations (e.g., the death of a family member).
Therefore, with this data, we can see that depression is a complex multifactorial behavioral trait associated with the expression of certain gene variants or alleles in an individual as well as different environmental conditions.
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Ensuring that managers operate firms in the best interest of the owners rather than themselves is called ____________.
Group of answer choices
managerialism
comparative advantage
takeover theory
the principal-agent problem
Ensuring that managers operate firms in the best interest of the owners rather than themselves is called the principal-agent problem. Option D is correct.
What is the the principal-agent problem?It is a problem generated by agents who are more concerned with their own interests than with the interests of the principals who employed them.
The principal agent problem occurs when one party (agent) decides to act in favor of another party (principle) in exchange for financial incentives. Such an agreement may incur significant expenses for the agent, resulting in moral hazard and conflict of interest issues.
The principal-agent problem refers to ensuring that managers conduct businesses in the best interests of the owners rather than themselves.
Therefore, option D is correct.
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5. Which molecule loses electrons in cellular respiration?
water
carbon dioxide
oxygen
glucose
Answer:
Organic fuel molecules are 'oxidized 'during cellular respiration.Explanation:
Respiration, the oxidation of glucose and other molecules in food, is a redox process. In a series of reactions, glucose is oxidized and oxygen is reduced. The electrons lose potential energy along the way, and energy is released.
For this discussion post, I read the article “A creator of ‘CRISPR babies’ nears release from prison, where does embryo editing stand?
This article explained how biophysicist He Jiankui, who used the genome editor CRISPR to create the world's first genetically engineered babies, may be released from prison this week.
His November 2018 announcement about gene editing was well received. Still, Fyodor Urnov sees no circumstance that would justify efforts to modify babies genetically. Urnov supports using CRISPR to fix disease-causing mutations after birth. The work has proceeded with little notice, and oversight measures to stop rogue experiments like He's have stalled. A study showed how CRISPR could get rid of a newly fertilized egg of an extra copy of a chromosome. This problem can lead to Down syndrome and other medical conditions. The initial concerns about designer babies centered on CRISPR's sloppiness. But a study of CRISPR-altered human embryos found 16% had these "unintended editing outcomes" at the targeted DNA, and genetic screening of edited IVF embryos might not catch these errors. Stem cell researcher Dietrich Egli hopes to find a way to start and stop CRISPR at the embryo's single-cell stage. In a preprint posted on bioRxiv on 10 March, Egli's group demonstrated a strategy for trisomy, an errant third chromosome, by targeting an extra paternal or maternal chromosome copy with a CRISPR cut at or near its centromere.
If CRISPR does not correct the trisomy in all of the cells in an early embryo, a natural "rescue mechanism" might eliminate the abnormal cells. However, there are still multiple obstacles to overcome. Researchers are trying to use CRISPR to edit human embryos but need help beyond science. Editing the DNA of egg or sperm precursor cells may avoid some of these hurdles, improving the odds of getting it right. Orwig's team is exploring a different route to creating edited sperm stem cells by reprogramming adult human cells into a stem cell state and trying to coax them partly down the pathway that produces sperm. However, reprogrammed adult cells only survive when placed into newborn animals, which is unrealistic for humans. Scientists say the increased awareness of CRISPR's shortcomings has underscored the recklessness of transplanting edited embryos with today's technology. Still, some scientists are openly advocating for the practice.
find something interesting and 1-2 questions about the summary
One interesting aspect of the article is the discussion around using CRISPR to edit disease-causing mutations after birth, rather than in embryos.
What is the authenticity if genetically modifying babies ?Fyodor Urnov supports this approach and believes that there is no circumstance that would justify modifying babies genetically. This raises the question of whether there is a moral or ethical line that should not be crossed when it comes to genetic modification of humans, even if it is done to prevent or treat disease.
Another interesting point is the potential use of CRISPR to edit the DNA of egg or sperm precursor cells to avoid some of the hurdles of editing embryos. This raises the question of how this approach would be implemented and regulated, as it involves altering the genetic material of potential future offspring before they are even conceived.
Overall, the article highlights the ongoing debate and ethical considerations around the use of CRISPR for genetic modification in humans, as well as the need for continued research and oversight to ensure that any such use is safe and ethical.
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number these 1-14 in the right order for blood flow through the heart starting with the right atrium:
Left atrium :
Vena Cava :
Tricuspid valve :
Right Atrium :
Left Ventricle :
Pulmonary Trunk :
Biscuspid Valve :
Pulmonary semilunar valve :
lungs :
Right ventricle :
pulmonary veins :
Aorta :
Aortic semilunar valve :
Answer:
1. body
2. vena cava
3.right atrium
4. tricuspid valve
5. right ventricle
6. pulmonary arteries
7. lungs
8. pulmonary veins
9. left atrium
10. biscupid valve
11. left ventricle
12.aortic seminular valve
13.pulmonary seminular valve
14. aorta
Lack of insulin causes.
a. Goiter
b. Anemia
c. Diabetes
d. Rickets
c. diabetes
..................
Fermentation converts organic material into a fuel whose primary component is
A. methane
B. sugar
C. yeast
D. alcohol
Answer:
D. alcohol
Explanation:
Fermentation by microorganisms converts organic materials into alcohol
........................................................
Answer:
It means that unavoided modification has accumulated on the original version.
Explanation:
When an engineer at a transmission station reports receiving noise, it means that they have detected unwanted and disruptive signals or interference in the transmission system. This noise can manifest as electrical disturbances, random signals, or other forms of electromagnetic interference that disrupt the quality and clarity of the transmitted information or data.
Receiving noise in a transmission system can have various causes, including environmental factors, electrical equipment malfunctions, electromagnetic interference from nearby sources, or signal degradation during transmission. It is essential for the engineer to identify and address the source of the noise to ensure the integrity and reliability of the transmitted signals. This may involve troubleshooting the equipment, adjusting signal filters, implementing shielding measures, or improving the overall transmission system design to minimize noise and maintain signal quality.
So, I think the bottom left is the right one.
The amino acid glutamate triggers which taste quality?
A. Bitter
B. Sweet
C. Umami
D. Salty
How is the energy of chemical processes coupled in metabolic pathways?
Answer:
Energetic coupling of chemical processes in metabolic pathways Biochemical systems couple energetically unfavorable reactions with energetically favorable reactions. These reactions can be part of catabolic pathways where complex substances are broken into simpler ones with the release of energy or anabolic pathways where complex molecules are synthesized with an input of energy.
Explanation:
The map here shows the average amount of water vapor in a column of
atmosphere during one month in 2015.
2
5
cm
5
Based on the data in the map, where would you expect vegetation on Earth to
be most dense?
OA. At the equator
OB. At higher altitudes
OC. At lower longitudes
OD. At the poles
Vegetation on Earth would be expected A. At the equator form the average amount of water vapor in a column of atmosphere.
What happens at the equator?The map shows that the average amount of water vapor in a column of atmosphere is highest at the equator. This is because the equator receives the most direct sunlight, which heats the air and causes it to rise. As the air rises, it cools and condenses, forming clouds and rain. This provides the water that plants need to grow.
At higher altitudes, the air is colder and drier, which is not ideal for plant growth. At lower longitudes, the sun's rays are less direct, which also reduces the amount of water vapor in the air. At the poles, the climate is too cold and dry for most plants to survive.
Therefore, based on the data in the map, would expect vegetation on Earth to be most dense at the equator.
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What dangers and impacts on the marine ecosystem arise from harvesting fossil fuels such as oil and methane hydrates from the oceans?
In this case, we have that oil and methane extraction have great impacts on the ocean, as there is always the release of these materials to the surrounding environment causing water pollution, altering the equilibrium of fito and zooplankton the base of the ocean food web, even more, intense human activity in these areas generate fauna displacement and habitat loss. Also in less quantity tend to be a release of methane into the atmosphere which is a powerful greenhouse gas.
Which has the most direct impact on evaporation in the water cycle?
O A. pollution
O B. temperature
O c. deforestation
O D. ozone depletion
Answer:
O D. ozone depletion.
Explanation:
O D. ozone depletion
What is Due process clause
Answer:
In United States constitutional law, a Due Process Clause is found in both the Fifth and Fourteenth Amendments to the United States Constitution, which prohibits arbitrary deprivation of "life, liberty, or property" by the government except as authorized by law.
Please give an awesome explanation.Ky answer if you're very good at Science/Biology.Please don't put a link to a website.
Explain how competition for food can cause natural selection.
Answer:
Competition for food happens when there is a limited amount of food resources available. The members of a species that eat that food who are best adapted to access the food are more likely to reproduce and pass on their genes to the next generation.
For example, we have a bird feeder with a narrow opening for food. The small-headed birds can reach the food, the bigger-headed birds cannot. If this was the only food source for this area, then over time, there would be more smaller-headed birds than large-headed birds, due to the competition for food and success/lack of success.
Plants prefer to absorb
nitrogen in what form?
Answer:
Nitrate
Explanation:
is the form of nitrogen most used by plants for growth and development. Nitrate is the form that can most easily be lost to groundwater. Ammonium taken in by plants is used directly in proteins. This form is not lost as easily from the soil.
What does the forward arrow in a chemical equation mean
Answer:
It shows where the chemical reaction proceeds.
Explanation:
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