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Concept 1: Natural Selection Flashcards | StudBud
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Concept 1: Natural Selection
Concept 1: Natural Selection
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A biology quiz covering the basics of evolution.
Flashcards
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Questions
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Answers
1
Which of the following is NOT a principle of natural selection?
Evolution occurs as an organism gets older and learns more
Organisms complete for limited resources
Adaptation allows some organisms to survive and reproduce
Most species produce more offspring than will reproduce
2
Genes for traits that help an organism be more successful reproductively can be expected to
eventually be eliminated by natural selection.
cause it to evolve into a new species.
become more common in the future.
cause the extinction of the species.
3
Natural selection results in change over time by acting on traits that are
heritable
mutated
better
new
4
Read the following question about Genetic Variation carefully:
Some may be resistant and survive.
All of the bacteria are already resistant.
They will get better at obtaining a food source.
The population will grow quickly.
5
Genetic diversity is ultimately/mainly the result of
mutations
reproduction
meiosis
viruses
6
Which of the following does NOT increase genetic variation?
Mitosis
Crossing over
Mutations
Gene flow
7
Individuals that are well adapted to their environment will survive and produce
stronger genes.
better traits.
more offspring.
fewer mutations.
8
Read the following question carefully:
coevolution
sexual selection
convergent evolution
natural selection
9
An adaptation is
how an organism evolves during its own lifetime.
a gene an organism has.
any trait an organism possesses.
a trait that helps an organism survive in its environment.
10
One of the major elements of natural selection is that all species have genetic _______.
melanism
variation
digression
stability
11
Which of the following is NOT an example of evolution?
A caterpillar going through a change into a butterfly
Human brains becoming larger over time
Horses becoming taller and faster over millions of years
All species of tortoises descending from common ancestors