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ayoismeisalex
07.04.2020 •
Biology
I need to c heck my answers
Question 1 (2 points)
Which of the following is a good definition for the word adaptation?
Question 1 options:
A trait that helps an organism survive and reproduce in its environment.
A change in an organism's environment.
An organism's behavioral change in response to a change in its environment.
Question 2 (2 points)
Which of the following situations describes a helpful adaptation for a mole?
Question 2 options:
A mole is bright and attracts the attention of predator birds.
A mole is blind and cannot see underground.
A mole has a sensitive sense of smell to help it find food underground.
Question 3 (2 points)
Which of the following words best matches this definition: The process in which the best-adapted organisms survive and pass on their traits, while those that are NOT well-adapted do not survive to pass on their traits.
Question 3 options:
Variation
Adaptation
Natural Selection
Artificial Selection
Question 4 (2 points)
Which of the following is a true statement?
Question 4 options:
Populations can't evolve, only individual organisms can.
Individuals evolve to have adaptations.
Individuals have traits that may or may not make them successful at reproduction.
Individuals have adaptations that can change over time.
Question 5 (2 points)
Which of the following statements is accurate about evolution?
Question 5 options:
Natural selection only eliminates odd individuals.
Evolution means that a population never has changes in its genetic frequencies.
Evolution means that a population undergoes changes in its gene frequencies over time.
Mutations are always harmful.
Question 6 (2 points)
Why are advantageous traits more likely to be passed onto offspring?
Question 6 options:
Because the trait is an acquired phenotype.
Because they are more likely to survive and reproduce.
Because they come from recessive alleles.
Because they come from dominant alleles.
Question 7 (2 points)
What is meant by the phrase “individuals don’t evolve”?
Question 7 options:
Some organism don’t have the ability to evolve and all survive as they are.
Individuals adapt, the term evolution is only used for species
Traits become more or less common within a population as a result of success, rather than individuals acquiring new traits.
Question 8 (2 points)
Which of the following best describes what was observed in the moth population of Manchester, England?
Question 8 options:
Natural selection caused moths with white wings to become extinct.
Natural selection favored moths with dark wings because predators could not see them on the soot-colored trees.
Natural selection favored moths with white wings that were easy for predators to see.
Natural selection favored moths with white wings because predators could not see them on the soot-colored trees.
Question 9 (2 points)
What would happen if there were no predators in the forest? Would the colors of the moths change over time?
Question 9 options:
Yes, the color of the moths would change because soot would still affect the trees.
No, with no predators, there is no selection pressure against a particular color, so the percentages of dark and light moths would stay the same.
No, the mutation only happened in response to the presence of the soot. Without predators, the mutation wouldn't spread in the population.
Yes, different colored moths would compete and only one color would win.
Question 10 (2 points)
Which of the following is NOT an example of natural selection?
Question 10 options:
Bacteria becoming resistant to antibiotics.
People selectively breeding dogs.
Male birds of certain species developing colorful feathers to attract female mates.
Insect populations developing resistance to certain pesticides.
Solved
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Ответ:
Question 1.. A. Question 2.. C Question 3.. D. Question 4.. D. Question 5.. C.
Question 6.. A. Question 7.. B. Question 8.. B. Question 9.. B. Question 10.. B.
Explanation:
Ответ:
OB Through gamete fusion