Evolution and Genetic Variation

Evolution is a very slow gradual process that occurs over long periods of time.

• true
• false

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Evolution is .....

• the process by which species change over time
• responsible for similarities we see across all species
• responsible for the great variety of things on Earth
• all of the above

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Which is not a type of adaptation?

• structural
• predatory
• physiological
• behavioral

As a species evolve, they develop ________ and ________ others

• old traits, save
• new traits, save
• old traits, lose
• new traits, lose

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Traits that help an organism survive are called....

• evolution
• natural selection
• adaptations
• habitats

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Which of the following is an example of a physical trait , or structural adaptation?

• a long neck of a giraffe
• building a nest
• regulation of body functions
• production of a toxic substance

Which is an example of a physiological adaptation?

• building a nest
• regulation of body temperature
• long neck of a giraffe
• needles of a pine tree

An organism that survives longer is more likely to produce_______offspring

• less
• the same amount
• more
• no

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Most adaptations that help an organism survive are passed on from parent to child as ___traits?

• adaptable
• physical
• more
• inherited

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The ability to recognize a predator is an example of a ______adaptation?

• behavioral
• structural
• physiological

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