According to the given situation, the fish experienced an evolutionary change because of genetic drift.
What is genetic drift?
Genetic drift is the change in the frequency of a present gene variant or allele in a population due to random chance.
Genetic drift may cause gene variants to disappear completely and thereby reducing genetic variation and also causing rare alleles to become much more frequent and evenly fixed.
Thus, the fish experienced an evolutionary change because of genetic drift.
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Answer:
(Q1) An animal is born with a shorter tail. This makes no difference to its ability to survive or reproduce, but as a result of pure luck, the animal survives, reproduces, and passes its shorter tail down to its offspring. Over time, the species develops a shorter tail.
(Answer) genetic drift
(Q2) The process of altering the genome of one species by adding genes from another species in order to gain a beneficial trait is known as
(Answer) genetic modification.
(Q3) Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges.
(Answer) The fish experienced an evolutionary change because of genetic drift.
(Q4) Which scenario accurately describes an example of artificial selection?
(Answer) A farmer intentionally breeds oranges to be more resistant to aphids.
(Q5) Over many generations, there is a good chance that an advantageous gene will be shared by every organism of the same species or that a new species will emerge. These long-term outcomes are called
(Answer) evolution.
Explanation:
these are the correct answers for the 2022 school year. hope this helps UwU
PLS HELP!!!!! after you eat a meal, the food gets broken down into its component parts through digestion. Order the words to describe the path that food takes as it moves along the digestive system. Place the first step at the top and the last step at the bottom.
saliva
chewing
small intestine
stomach
peristalsis
Answer:
chewing
saliva
peristalsis
stomach
small intestine
Explanation:
first, you chew the food. At that time the food gets mixed with your saliva then after u swallow it, it goes to your stomach through peristaltic movement then into ur small intestine.
hope it's helpful!
You are a sports dietitian working with athletes at a local high school. An athlete comes to you and asks about dietary supplements to increase their vitamin intake. What would be your primary message regarding vitamin supplements for athletes?
a. It is unlikely your vitamin needs are significantly increased above the Dietary Reference Intakes (DRI) and a vitamin supplement may not be necessary, but a dietary assessment may reveal vitamin deficiencies.
b. You should consume vitamin supplements to reach the tolerable upper intake level for each vitamin.
c. It is necessary to consume vitamin supplements as an athlete.
d. All athletes have vitamin deficiencies and should consume vitamin supplements on a regular basis.
It is unlikely your vitamin needs are significantly increased above the Dietary Reference Intakes (DRI) and a vitamin supplement may not be necessary, but a dietary assessment may reveal vitamin deficiencies is the best message for the athlete.
What is Dietary Reference Intakes?This is defined as a set of reference values used to plan and assess nutrient intakes of healthy people.
Vitamin needs in the body aren't increased above the reference intakes and so intake of supplement isn't a necessity.
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How many sperm are produced by the average human male.
Answer:
In fact, the average male will produce roughly 525 billion sperm cells over a lifetime and shed at least one billion of them per month. A healthy adult male can release between 40 million and 1.2 billion sperm cells in a single ejaculation.
Which of the following statements reflects a cognitive characteristic that is present during late adulthood? a. during late adulthood, one is full of knowledge and wisdom. b. during late adulthood, one pursues new challenges. c. during late adulthood, one reflects on changes and mortality. d. during late adulthood, one has a better sense of identity.
The statement that reflects a cognitive characteristic that is present during late adulthood is, During late adulthood, one is full of knowledge and wisdom. So, the correct option is A.
What do you mean by Cognitive Characteristics?Cognitive characteristics may be defined as an immersive and active process that engages your senses in a constructive and long-lasting way.
Cognitive characteristics teach you to maximize your brain potential and make it easier to connect new information and ideas during late adulthood.
Therefore, the statement that reflects a cognitive characteristic that is present during late adulthood is, During late adulthood, one is full of knowledge and wisdom.
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Answer:
a. during late adulthood, one is full of knowledge and wisdom.
Explanation:
Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called
Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called Cheyne-Stokes respiration. It is an abnormal respiration cycle.
What is Cheyne-Stokes respiration?The Cheyne-Stokes respiration is an abnormal type of respiration cycle characterized by apnea.
Cheyne-Stokes respiration refers to an unnatural manner of breathing that is generally associated with sleep.
Cheyne-Stokes respiration is characterized by fast abnormal breathing cycles and then slow apnea abnormal breathing cycles.
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Fossil fuels, such as gas, oil, and coal have ____ energy.
Answer:
A. chemical energy
Explanation:
Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy.
A key step in developing a new explanation is:______.
a. making observations about a place or process.
b. asking questions about the observations.
c. proposing an interpretation that can be tested.
d. collecting new observations to test predictions.
e. All of these choices are correct.
A key step in developing a new explanation is c. proposing an interpretation that can be tested.
What steps are involved in having a hypothesis become an established theory?A U.S. government agent votes on whether the belief is taken. A United Nations scientific forum votes on whether the belief is taken. The hypothesis is constant with further data and probes used to test its forecasts.
Thus, option "C" is correct.
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what is auto and factory emissions
What is the function of DNA? It takes the message of the amino acid order for proteins to the cytoplasm, where the protein will be built. It serves as an enzyme to speed up many kinds of biochemical reactions in the cell. It builds proteins from amino acids using the instructions stored in RNA. It stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids.
Answer: The answer is B. (It stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids.)
Explanation: I took the test and this was the answer! :)
The function of DNA (deoxyribonucleic acid) is to store and transmit genetic information from one generation to the next, and it stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids. That is the last option.
What is DNA?DNA is a molecule composed of long chains of nucleotides. A nucleotide is made up of three components: a sugar molecule, a phosphate group, and a nitrogenous base. The process of gene expression begins with the transcription of DNA into RNA (ribonucleic acid). RNA is a molecule similar in structure to DNA but with a few key differences, such as the presence of the nitrogenous base uracil (U) instead of thymine. DNA also plays a role in the regulation of gene expression. Certain regions of DNA, called promoters and enhancers, help to control when and where a gene is expressed.
Hence, it stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids. That is the last option.
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Habitat ______ imposes fluctuations in availability of basic needs such as food and water upon organisms.
Answer: Habitat variability imposes fluctuations in availability of basic needs such as food and water upon organisms.
what is the difference between fats and oil ?
Answer:
fats are made up of high levels of saturated fatty acid that take form at room temperature and oils are made up of mostly unsaturated fatty acid which are liquid at room temp
PLS HELP When a forensic scientist needs to quickly identify a drug without first separating the substances, which test would be MOST useful?
spectrophotometry
gas chromatography
microcrystalline
narcotic
Answer:
A spectrophotometry test
Explanation:
I say this because a spectrophotometry test will give you information in a relatively fast time.
The visible portions of ultraviolet light are measured by UV spectrophotometers, which are useful for determining the concentrations of active components in pharmaceutical substances as well as for checking for contaminants. Thus, option A is correct.
What is the importance of spectrophotometry in drug?In biochemistry and molecular biology, spectrophotometry analysis is frequently used to estimate the concentration of biomolecules in a solution.
Spectrophotometers are used in clinical laboratories for a variety of tasks, including quantitative analysis, kinetics, spectrum scanning, and multiple component DNA/protein testing.
There are several spectrophotometers available from reputable firms in the field.
Therefore, When a forensic scientist needs to quickly identify a drug without first separating the substances, a spectrophotometry test would be most useful.
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In people, the allele for brown eye color (B) is dominant over the allele for green eye color (b), and the allele for brown hair color (H), is dominant over the allele for having red hair color (h). (6F) What is the expected phenotypic ratio of the offspring of a BbHh x BbHh cross if these alleles sort independently?
A) 4 brown/brown : 4 brown/red : 4 green/brown : 4 green/red
B) 12 brown/brown : 1 brown/red : 2 green/brown : 1 green/red
C) 9 brown/brown : 3 brown/red : 3 green/brown : 1 green/red
D) 16 brown/brown : 0 brown/red : 0 green/brown: 0 green/red
Answer:
C) 9 brown/brown : 3 brown/red : 3 green/brown : 1 green/red
hello humans ~
what's kreb cycle? explain in brief
Answer:
Kreb cycle is the sequence of reactions by which most living cells generate energy during the process of aerobic respiration. It takes place in the mitochondria, using up oxygen and producing carbon dioxide and water as waste products, and ADP is converted to energy-rich ATP.
Explanation:
Definition:
A cycle of reactions catalyzed by enzymes in which the pyruvate derived from nutrients and converted to Acetyl Coenzyme A is completely oxidized and broken down into carbon dioxide and water to produce high-energy phosphate compounds, which are the source of cellular energy.
In eukaryotes, the Krebs cycle reactions take place in the mitochondrial matrix, a dense solution that surrounds the mitochondria crests: in addition to water, the matrix contains all the enzymes necessary for the biochemical reactions of the cycle, coenzymes, and phosphates.
Equation:
The overall reaction for the citric acid cycle is as follows: acetyl-CoA + 3 NAD+ + FAD + GDP + P + 2H2O = CoA-SH + 3NADH + FADH2 + 3H+ + GTP + 2CO2.
Hope this helps you.
Please help!!! I’ll mark brainly
Answer:
2. b
3. B
4. BB, Bb, bb
5. bb
6.Bb, BB
7.Bb
(couldn't answer the whole question, sorry)
QUESTION 14
The haploid number of chromosomes of a palm tree is 30. The number of chromosomes in root, stem, and leaf cells would be
a. 10.
b 20.
c. 30.
d. 40.
e. 60.
Which of the following is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce? a. cargo ship hulls b. recreational boats c. escape from aquariums d. migration please select the best answer from the choices provided a b c d
The correct option is "D" Migration.
Since the term aquaculture mainly refers to the cultivation of aquatic organisms in controlled aquatic environments for any commercial, recreational or public purpose. whereas external organisms are added to an ecosystem in order to raise their number keeping in mind the availability of food for them.
For the creation of new aquatic ecosystem cargo ship hulls, recreational boats, organisms escaping from the aquariums can be useful as these methods are non-natural and are disturbing the original productivity and stability of the ecosystem.
What is migration?Migration is a natural phenomenon in which non-native organisms move to another habitat in search of food required for survival.
Thus, Migration is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce.
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Answer:
D. Migration
Explanation:
Aqua culture is the phenomena for rearing fish and other aquatic organisms with high commercial value for food production. Non- native organisms are added in an ecosystem in order to raise their number keeping in mind the availability of food for them. For creation of new aquatic ecosystem cargo ship hulls, recreational boats, organisms escape from the aquariums can be useful as these methods are non- natural and they are disturbing the original productivity and stability of ecosystem by introducing nonnative organisms to new aquatic ecosystem. But migration is a natural phenomena in which non-native organisms move to other habitat in search for food and habitat required for survival.
GOT IT RIGHT, HOPE THIS HELPS!
Descube what scientist know about exoplanets, planet-like object outside the solar system.
Answer:
Exoplanets are planets beyond our own solar system. Thousands have been discovered in the past two decades, mostly with NASA's Kepler Space Telescope. These worlds come in a huge variety of sizes and orbits. Some are gigantic planets hugging close to their parent stars; others are icy, some rocky.
The story of the evolution of early birds winds through the chapter as an example of the dynamic nature of science. Why is it likely the dinosaur-bird evolutionary tree will be modified again?
Choose one:
A. The fossil record is incomplete, so the relationship between birds and dinosaurs will never be resolved, leaving the evolutionary tree to always be questioned.
B. The process of science is one of continual discovery, and new information is likely to be discovered that could change our current understanding.
C. Because dinosaurs are extinct, the dinosaur-bird evolutionary tree can never be resolved.
D. Because of the rapid advancements in technology, DNA analyses will ultimately prove that birds did not descend from dinosaurs.
Answer: B the process of science is one….
Explanation:
The process of science is one of continual discovery, and new information is likely to be discovered that could change our current understanding. Option B is correct.
The process of scientific inquiry is characterized by its dynamic and evolving nature. This applies to fields such as paleontology and evolutionary biology, including the study of the evolution of early birds and their relationship to dinosaurs.
The fossil record is incomplete, and while it provides valuable insights into the history of life on Earth, it does not capture every species that ever existed. As new fossils are discovered and technologies improve, our understanding of the relationships between different species, including the evolution of early birds from dinosaurs, can change.
Advancements in technology have allowed scientists to gather more detailed information from fossils, perform more precise analyses, and even extract DNA from ancient remains. These technological innovations can lead to new discoveries and a better understanding of the evolutionary relationships among different organisms.
Additionally, the scientific community encourages skepticism and critical evaluation of existing theories. New evidence, whether from fossils, genetic studies, or other sources, can prompt researchers to reevaluate and modify their understanding of the dinosaur-bird evolutionary tree.
In conclusion, the dynamic nature of science, the ongoing discovery of new evidence, and the advancement of technology all contribute to the likelihood that the dinosaur-bird evolutionary tree will continue to be refined and modified as our understanding of the past evolves. This is a fundamental characteristic of the scientific process, which seeks to refine and improve our knowledge over time.
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I will write essay, but need the 3 reasons why.
In this activity, you will need to analyze the reasons that people give for smoking. This may be done by interviewing some people you know that smoke or by going online and researching reasons persons give for smoking.
Below, in the downloadable essay, list three reasons why people smoke. Weigh each reason against the facts. In other words, prove that the reasons not to smoke far outweigh the reasons to smoke. Information on smoking can be found at the Centers for Disease Control and Prevention (CDC).
CDC Information on Smoking and Tobacco Use
1. Reason:
Opposing Argument/Contradictory Facts:
2. Reason:
Opposing Argument/Contradictory Facts:
3. Reason:
Opposing Argument/Contradictory Facts:
Answer:
Some reasons that people give for smoking:
> they believe it reduces stress and anxiety ( scientific studies show this isn't factual and the chemicals within smoking products is only made appealing and or distracting to make the user believe so. It actually heightens stress levels and lowers health levels)
> this sounds cliche but, teens often think its cool or get peer pressured into it. They find themselves wanting to try harmful substances and get addicted. ( in one study there were d r u g s found in smoking products aimed to get the attention of children and young adults. It's all a marketing ploy for business men and women to collect money as you slowly grow more and more breathless)
> lastly, "it's not that bad for you" often, markets and cig stores tell potential buyers its not as bad as other things. Some say its not harmful at all.( Lung disease,gum disease,heart failure,etc. all disprove this. Each year about 480,000 people die from the affects of smoking)
Explanation:
RNA polymerase is said to have high _____, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template
Answer:
processivity
explanation
RNA polymerase is said to have high processivity, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template
RNA polymerase is said to have high A) processivity, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template.
Processivity refers to the ability of an enzyme to remain attached to its substrate and catalyze multiple consecutive reactions without dissociating. In the case of RNA polymerase, it is responsible for synthesizing RNA molecules by using a DNA template.
RNA polymerase exhibits high processivity, meaning that once it binds to the DNA template, it can catalyze the formation of RNA molecules for an extended period without releasing the DNA template. This allows for the efficient synthesis of long RNA strands.
During transcription, RNA polymerase moves along the DNA template, unwinding the DNA double helix and adding complementary RNA nucleotides to the growing RNA chain. It remains attached to the DNA template throughout this process, continuously elongating the RNA molecule.
The high processivity of RNA polymerase is essential for the accurate and efficient transcription of genes. It ensures that the RNA molecule is synthesized without interruptions or premature termination. This processivity allows RNA polymerase to transcribe entire genes or long stretches of DNA without dissociation, facilitating the synthesis of functional RNA molecules.
Overall, the high processivity of RNA polymerase contributes to the fidelity and efficiency of transcription, allowing for the synthesis of RNA molecules that faithfully represent the information encoded in the DNA template.
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The complete question is:
RNA polymerase is said to have high _____, meaning that it can catalyze thousands to millions of reactions without releasing the DNA template
A) processivityB) continuityC) fidelityD) stabilityE) connectivityWhich of the following directly causes deforestation?
A. Wind
B. Biomass
C. Nuclear fission
D. solar
Answer:
The answer is C. Wind levels usually remain static in a specific location, so any existing life is not affected much. Biomass contributes to growth as it enriches the soil. Solar (assuming it's referring to the widespread increase in the use of solar energy) could actually be indirectly beneficial to forests. Nuclear fission, however, can cause harm to plants. Some known effects on plant life include stunted growth, reduced germination, and genetic mutations in addition to the direct burning that could be inflicted on plants in some cases.
Choose the BEST paraphrase of this text:
Black holes are extremely compact space objects that were once massive stars.
A) Black holes are super tiny space things that used to be big old stars.
B) Black holes are extremely compact space objects that were once massive stars.
C) Massive stars are extremely compact spaces objects that were once black holes. D) The extremely small objects in space that at one time were enormous stars are called black holes. Hint Communication (2.3) Quote Or Paraphrase ID: 55394
Answer:
D
Explanation:
The extremely small objects in space that at one time were enormous stars are called black holes.
The picture below shows a tropical rainforest. The temperature in the rain forest is always warm, day and night. This environment contains many green plants and receives a lot of rain.
Which kind of plant or animal would be found in this environment?
A)a mammal that has thick fur year-round
B)a plant that needs little water to survive
C)a vine that grows up a tree to get sunlight
D)an animal that feeds on grasses and wheat
Answer:
Temperature. The rainforest biome remains warm all year and must stay frost-free. The average daily temperatures range from 20°C (68°F) to 25°C (77°F).
Explanation:
this does not tell u the answer but i hope it helps in some way
Missing picture of the tropical rainforest.. Thus, I will try my best to help.
Answer:
D)an animal that feeds on grasses and wheat
Explanation:
Let go over all the answer choices:
A) a mammal that has thick fur year-round
Knowing that :
Temperature is always warm.. Thus, a mammal that has a thick fur year-round can't survive in this kind of place.
=================================================================
B)a plant that needs little water to survive
Knowing that:
This environment receives a lot of rain.. Thus, This type of plant can't survive in this kind of place
=================================================================
C)a vine that grows up a tree to get sunlight
Knowing that:
Since it receives a lot of rain.. Thus, it may not get sunlight..
=================================================================
D)an animal that feeds on grasses and wheat
Knowing that:
This environment contains many green plants
thus, this may be the best answer.
[RevyBreeze]
Describe the treatment measures for Type 1 and Type II Diabetes.
please answer this, will give brainlest.
Answer:
Type 1 diabetes treatment consists of the following steps: taking insulin. Counting carbs, fats, and proteins Blood sugar levels should be checked on a regular basis.
Type 2 diabetes cannot be cured, but it can be controlled with weight loss, a healthy diet, and regular exercise. If diet and exercise are insufficient to control your blood sugar, you may require diabetes medication or insulin therapy.
I hope this helps you
:)
What do you know about climate? causes and impacts?
Answer:
small thing about climate change
Explanation:
Climate Change is trapping Co2 into the earth's atmosphere, raising the temperature of the Earth. Because of that, it's melting the Antarctic and killing millions of animals. Not only that, but it's also causing droughts, and usually droughts are the cause(s) of famine which kill millions of not only animals, but humans too.
True or False: Ribosomal RNA is processed after transcription by cleaving and trimming of the molecule.
Answer:false
Explanation: because it occurs in the nucleus
Homeostatic ______ occurs when there is a disturbance in one or more of the body’s systems.
Answer:
Imbalance is your answer, mate!!!
Explanation:
Homeostatic imbalance occurs when the human body’s internal environmental variables become disturbed.
Does this answer your question?
which of the following species are most likely to be in competition
a) tigers and Ferns
b)Bears and reccoons
c) Files and rabbits
d) Lynx and Squirrels
Which of the options is circled in this electron micrograph?.
Two double stranded DNA is circled in the electron micrograph.
What is a DNA?This is referred to as Deoxyribonucleic acid and has a double helix structure which carries genetic instructions in all living things.
In the electron micrograph, the diagram seen is that of two double stranded DNA which was why option A was chosen as the most appropriate choice.
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