Evolution Intro

Prokaryotes have similar DNA as mitochondria and chloroplast is evidence for the...

• Alien seed hypothesis

• Life started in hydrothermal ocean vents

• Endosymbiotic theory

• Primordial Ooze Hypothesis

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The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________

• Species

• Environmental Change

• Adaptation

• Variation

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a bird that can easily outcompete other birds for food and that can produce many eggs has a high

• life expectancy

• mutation rate

• fitness

• adaptability

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How do natural selection and variation work together?

• Natural selection is random and does not favor any traits.

• Natural selection works on variations to promote advantageous traits in a population.

• Natural selection eliminates all variations in a population.

• Variation occurs only in response to environmental changes.

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A change in a population's gene pool over time is known as.....

• evolution

• mutation

• adaptation

• speciation

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How do mutations, adaptations, and natural selection work together in a population?

• Mutations create variations, adaptations improve survival, and natural selection favors beneficial traits.

• Mutations are only beneficial, adaptations are always harmful, and natural selection is a myth.

• Mutations are harmful, adaptations are unnecessary, and natural selection is random.

• Mutations eliminate variations, adaptations hinder survival, and natural selection ignores traits.

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Individuals with favorable traits are more likely to survive and reproduce describes which word below?

• Evolutionary adaptation

• Artificial selection

• Genetic drift

• Natural selection

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Any movement of individuals, and/or the genetic material they carry, from one population to another describes which word below?

• Genetic drift

• Natural selection

• Gene flow

• Mutation

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the organism knew it needed that trait, survives, and passes it on.

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Where do adaptations come from?

• The individual organism decides to adapt

• Mutations that give an organism an advantage in its environment

• Genetic recombination during meiosis

• Both mutations and genetic recombination are sources of adaptation

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