Environment-related factors are thought to affect the rate of mutation but not typically the direction of mutation.
What is Mutation?Exposure to dangerous chemicals may speed up the rate of mutation, but it won't result in more changes that make the organism immune to those toxins.
Many mutations are in reality "random," according to tests, and did not happen because the organism was put in a setting where the mutation would be advantageous.
Esther and Joshua Lederberg found that many of these mutations for antibiotic resistance were already present in the population in 1952, even before the population had been exposed to the antibiotic.
Therefore, Environment-related factors are thought to affect the rate of mutation but not typically the direction of mutation.
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Identify: What is the name for the division of the nervous system that handles involuntary actions and processes of the body?
*15 Points* Please don't answer just for the points, actually answer the question.
The autonomic nervous system regulates involuntary and unconscious actions like breathing, digestion, and internal organ function. The system consists of two complementary parts; the sympathetic andparasympathetic systems.
Notice the two possible arrangements of chromo-somes in late prophase I. Considering what you know about DNA replication and meiosis, is either arrangement equally likely during the formation of tetrads in late prophase I
Yes, both arrangements of chromosomes in late prophase I are equally likely during the formation of tetrads. This is because, during meiosis, the homologous chromosomes replicate and then line up in pairs, known as tetrads.
During this process, the chromosomes can line up in any order, as long as the homologous chromosomes are paired together. Since the two arrangements of chromosomes in late prophase I consist of homologous chromosomes, they are both equally likely during the formation of tetrads.
Furthermore, during meiosis, the homologous chromosomes randomly separate and move to opposite sides of the cell in anaphase I, so the order of the chromosomes in late prophase I will not affect the outcome of meiosis.
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Energy from the cell is needed to move substances against a concentration difference.
Compare and Contrast What are the similarities and differences between facilitated
diffusion and active transport by a protein pump?
How many waves are passing from y through n?
A.) about 10
B.) about 15
C.) about 20
Answer: b
Explanation:
Please help I don't understand them
The first reaction in the image is hydrolysis reaction and the second one is condensation reaction.
What is chemical reaction?The process of changing one group of chemical compounds into another is referred to as a chemical reaction.
A condensation reaction is a kind of chemical reaction in organic chemistry where two molecules join to produce one molecule, typically with the loss of a minor molecule like water.
The process is also referred to as a dehydration synthesis if water is lost during it.
The hydrolysis reaction is the reverse of a condensation reaction and involves two molecules (often H2O) reacting to form two distinct molecules.
Hydrophobic compounds can't dissolve or mix with water. Hydrophobic substances are those that naturally repel water, resulting in the formation of droplets.
Thus, as in the first reaction, water molecule is used to break the bond so it is hydrolysis, as well as the removal of water molecule in second reaction shows condensation reaction.
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need help asap
question 4
- 20 points
Time Span of the renewability of fuels is a major factor when considering what type of fuel to use in a project. Fossil fuels, including ___,___,and___,require ___ to___ of years to renew. Alternative fuels, including ___,___, and___ power, have a huge advantage since they require between ___ to about one ___ years to renew. Making the ___ fuels the preferred choice for the conversation of natural resources.
Answer:
Time Span of the renewability of fuels is a major factor when considering what type of fuel to use in a project. Fossil fuels, including oil, coal, and natural gas, require thousands to millions of years to renew. Alternative fuels, including biomass, solar, and wind power, have a huge advantage since they require no time to about one hundred years to renew. Making the alternative fuels the preferred choice for the conservation of natural resources.
Explanation:
I have been able to missing in the gaps with the correct word that is appropriate in the sentence.
Fossil fuels are known to be hydrocarbons which are majorly oil, coal and natural gas. They are formed from the remains of dead animals and plants. The process of fossil fuel formation started millions of years ago. It actually a longer time to renew. The alternative do not take longer time.
Answer:
Time Span of the renewability of fuels is a major factor when considering what type of fuel to use in a project. Fossil fuels, including oil, coal, and natural gas, require thousands to millions of years to renew. Alternative fuels, including biomass, solar, and wind power, have a huge advantage since they require no time to about one hundred years to renew. Making the alternative fuels the preferred choice for the conservation of natural resources.
Explanation:
List the features of a flower that ensure pollination will take place at some point.
Answer:
pistil, stigma, stamen, and pollen
Explanation:
Tiene como objetivo eliminar microorganismos causantes de enfermedad
Answer:
Mantenha sempre as mãos limpas
Siga dicas para tossir e espirrar sem contaminar.
Evite tocar em seu nariz, olhos e boca com as mãos sujas. ...
Evite tocar em seu nariz, olhos e boca. ...
Evite o contato com pessoas que estão doentes, pois podem estar contidas.
Can a female calico get pregnant?
No, calico cats can't breed, so they can't have children.
The calico cat is one of the most beautiful creatures in the world. Characterized by its unique fur, it is loved not only by cat lovers, but also by non-cat lovers.
Calico cats cannot actually breed due to their unique genetic makeup (and the fact that male calico cats are born sterile). The XXY configuration can lead to Klinefelter's Syndrome, a health problem we'll discuss later. These cats are too sterile and cannot be used to lineage other calico cats. Calico cats are believed to bring good luck and wealth to homes and families. It's also considered a little magical because it's three colors.
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Full explanation Please
The relationship between the III-1 and III-2 is husband and wife as it is consanguineous marriage.
What is pedigree analysis?Pedigree analysis was created to comprehend how genes are passed from parents to their offspring.
It was created as a diagram that can illustrate a family tree, the family members, and their individual genetic characteristics.
Getting married to someone you are closely related to is known as consanguine marriage. Despite the possibility of incest, it indicates more than just incest's intimate component.
Marriage between two relatives who are second cousins or closer is considered a consanguineous union in a clinical sense.
Thus, due to consanguine marriage, they are husband and wife.
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Explain the global pattern of Earth's Biomes
Answer:
The global pattern of Earth's Biomes is a function of climatic conditions, such as latitude, air pressure, and winds
Explanation:
The global pattern of Earth's Biomes includes the following:
1. Polar region: it located in the north and south pole of the earth
2. Temperate deciduous forest: easily located in Europe and the United States. It grows well during a mild and wet climate.
3. Temperate grassland: this is common in Hungary, South Africa, Argentina, and the USA. It is characterized by average rainfall and a mild climate.
4. Desert: this is peculiar to areas such as Tropics of Cancer and Capricorn. It is characterized by hot climatic conditions
5. Tropical rainforest: it is common to places mear equator, and it is characterized by hot and wet climate
6. Savanna grassland: usually located in central Africa, southern India, northern Australia, and central South America. It is characterized by heat and dry climatic conditions.
7. Coral reefs: usually found around the equator approximately 30° north and south from the equator. It is highly distinct naturally.
Why do we think of wind as another form of solar energy?
Answer:
wind is produced by the uneven heating of the earth's surface by the sun
Explanation:
therefore, the sun is technically making windmills spin to make energy
Explain why fat-free potato chips fried in artificial fats contain fewer calories than those fried in natural fats.
Fat-free potato chips fried in artificial fats contain fewer calories than those fried in natural fats because of the less fat content which are present in the product.
What is Artificial fat?This is referred to as the type of fat which is created in an industrial process that adds hydrogen to liquid vegetable oils to make them more solid.
It also has less amount or percentage of fat which can be converted into calories by the body as fat on its own is also a major source if energy in the body but is usually metabolized slowly unlike carbohydrates which is metabolized faster.
This is therefore the major reason reason why fat-free potato chips fried in artificial fats contain fewer calories than those fried in natural fats thereby making it the correct choice.
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Which statement is true about the part of the electromagnetic spectrum that is divided into seven ranges of wavelengths?
A. It is one of two parts visible to the human eye.
B. It is one of three parts visible to the human eye.
C. It cannot be seen by the human eye unless it rains.
D. It is the only part visible to the human eye.
Answer:
d
Explanation:
the only part visable to the human eye is visable light
describe at the molecular level how cells extract energy frm starches proteins and lipids by the process of aerobic respiration
The objects in this photo belong to which major sphere of the Earth system?
Which of the following is true about ECT today?
(1 Point)
A.Patients experience severe pain during the shocks.
B.It is applied to both hemispheres of the brain.
C.Doctors prefer to use it first, before trying drug therapy.
D.It brings no discomfort to the patient.
Answer: B. It is applied to both hemispheres of the brain.
Explanation:
ECT or electroconvulsive therapy is the treatment which is given for the treatment of depression, mental depression, suicidal patients, and others. In bilateral process one electrode is applied on the left and other on the right side of the brain. This way both hemispheres get the electrical treatment. Hippocampus and amygdala are two parts of the brain which are targeted in this process. These parts control the memory and emotion.
What role does fossil fuels play in the carbon cycle? *
They are a sink of carbon. The carbon in fossil fuels hasn't been in the carbon cycle in
millions of years.
They absorb carbon dioxide from the atmosphere with their buffering ability
The fossil fuels are getting more acidic because they are absorbing too much carbon
dioxide
Fossil fuels are not involved in the carbon cycle. They are involved in nutrient cycling.
Answer:
A
Explanation:
Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels.
What cell types are the cell walls present?
Answer:
The cell wall is the outer covering of a cell, present adjacent to the cell membrane, which is also called the plasma membrane. As mentioned earlier, the cell wall is present in all plant cells, fungi, bacteria, algae, and some archaea.
Describe a situation in which your reaction time is very important. Describe the signal and the reaction to that signal.
(Example: you touch something hot [signal] and your hand pulls away [reaction]).
Answer:
Driving: when the light is red, you step on the brakes to stop and avoid traffic accidents.
Isotopes of an element differ in their _________.
Answer:
neutrons
Explanation:
Why is evolution classified as a theory?
In the same way that Einstein's theory of gravity is referred to as a theory, scientists also discuss evolution as a theory.
A theory is an explanation for how a natural phenomenon functions that has undergone extensive testing through observations and experiments intended to establish the validity of the explanation. In this context, evolution might be considered both reality and a theory. The fact that creatures have altered or evolved over the course of Earth's history is undeniable. Additionally, scientists have looked into the mechanisms that could account for the main patterns of change in biology. Since it provides a comprehensive account of events that have taken place in the natural world, evolution is referred to as a theory.
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The diagram below shows the ways cells can release energy from food depending on if
oxygen is available.
Using the diagram below, respond to the following:
**Reference that Photosynthesis Summary sheet we first saw in lesson #1 to help
you with this!!
1. Which step(s) takes place if oxygen is available?
2. Which step(s) take place if oxygen is not available?
3. Do we make more ATP when the process is aerobic or anaerobic?
4. Which specific step of aerobic cellular respiration makes the most ATP?
Answer using complete sentences.
Glycolysis
Overview of Cellular Respiration
C6H12O6 +6026CO₂ + 6H₂O + ATP
Oxygen present
Oxygen not present
Krebs cycle
Electron transport chain
Lactic acid fermentation
Alcohol fermentation
1
+
Glycolysis is the metabolic pathway through which breakdown of complex sugar molecules takes place in the cell with the production of ATP molecules.
What is Glycolysis?Glycolysis is the process in which glucose molecules (sugar) is partially broken down by the cells in enzyme reactions which do not need oxygen molecules. Glycolysis is the method which the cells use to produce energy in the form of ATP.
If oxygen is available or present, then Krebs cycle takes place and electron transport chain also takes place.
If oxygen is not available or absent in the medium, then in that case, alcohol fermentation and lactic acid fermentation takes place.
More amount of ATP is produced when the process is aerobic in the presence of oxygen. About 32 molecules of ATP (adenosine triphosphate) are produced through glycolysis in the presence of oxygen.
The electron transport chain of the glycolysis pathway makes the most number of molecules of ATP in the cell.
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You are on roller blades on top of a small hill. Your potential energy is equal to 1,000.0 joules. The last time
you checked your mass was 60.0 kilograms.
a. What is your weight in newtons?
c. If you start skating down this hill, your potential energy will be converted to kinetic energy. At the
bottom of the hill, your kinetic energy will be equal to your potential energy at the top. What will be
your speed at the bottom of the hill?
We know that energy has to do with the ability to do work. Now we ought to know that the energy that is contained in an object that is just at a fixed position can be said to be potential energy while the energy that is in an object that is in motion is said to have the kinetic energy.
We know that both the kinetic energy and the potential energy or both the forms of mechanical energy and that the potential energy would be converted to kinetic energy as the object is falling down to the bottom.
a) The weight of the object is;
Weight = mass * acceleration due to gravity
Weight = 60 Kg * 10 m/s^2
= 600 N
c) Given that kinetic energy = potential energy
1000 = 1/2mv^2
v = √2 * 1000/60
v = 5.8 m/s
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Where in the body do you think cells must divide frequently in adults?
Answer:
And then, certain regular cells, such as those in hair follicles, hairs, the mouth, the digestive tract, and bone marrow, split rapidly (bone marrow makes blood cells). Chemotherapy may also damage these other forms of quickly dividing cells accidentally, resulting in chemotherapy side effects.
Explanation:
Hope this helps!
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While Joey was working in the lab, he developed what he thinks to be a cure for cancer. He tested the medicine on one cancer patient, and the patient becomes cancer-free within hours. Joey tried to publish his results, but the scientific journal will not accept his article. Why?
Answer:
The correct answer is - He only tested one subject, so his conclusion is not valid.
Explanation:
In the given question there is an experiment where Joey developed medicine for curing cancer. He tested the medicine on a cancer patient but his results did not publish in the journal as the experiment is not reliable as he tested on a single subject.
The tests or experiments should have performed on different subjects to test the reliability of the results. Single-subject experiments are not trustworthy as there can be other factors or physical condition can help the subject other than medicines.
If long-term higher global temperatures continue to rise on Earth which aspect of the water cycle will most likely occur more rapidly?
Answer:
evaporation
Explanation:
because the more heat that hits the water the more it evaporates
If long term higher global temperature continue to rise on Earth which aspect of the water cycle will most likely occur more rapidly
The correct answer is :
It affects the evaporation and precipitation.
What is water cycle?
It is the cycle process by which water circulates between the earth's oceans, atmosphere, and land. It involves precipitation as rain and snow, drainage in streams and rivers.This precipitate water returns to atmospheric by evaporation.What affects the parts of water cycle?
Change in climate affects the parts of the water cycle to speed up if the temperature increases.Than it leads to increase in the rate of evaporation. Increase in evaporation cause more precipitation.So, evaporation is the correct answer.
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How can friction help a car?
Answer:
it helps a car slow down or pull to a stop I think
What is a pedigree and how is it read?
One can identify how a specific trait is passed down via a family using pedigrees. The relationship between parents, children, and siblings determines whether a feature is present or absent in a pedigree.
A pedigree displays the relationships between family members and indicates the family members who have specific genetic pathogenic variants, traits, and diseases, as well as information on their present health. The genealogy of a family may show how diseases are passed down through the generations.
The AKC pedigree is a traditional lineage pedigree, which reads from your dog on the left through subsequent generations branching to the right. It contains a history of your dog's direct ancestors. You can read each successive generation to the right by starting with your dog at the left.
If a trait skips a generation in a pedigree, it is frequently an autosomal recessive trait, according to one tip for spotting recessive traits (although a trait can be autosomal recessive and not skip generations). Both gender share the same prevalence of these traits.
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