The 12 Days of Evolution video

Centuries of observing nature has shown us that all life is ...

• animal

• related

• plant

• unrelated

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Which is NOT one of the main parts of the theory of Biological Evolution?

• change in frequency of traits

• descent with modification

• offspring are exact copies of parents

• common descent

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Which is the RANDOM part of evolution?

• changes (mutations) in DNA leading to variation

• natural selection

• predators choosing prey

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What is a unique feature of the island of Kauai's crickets?

• They chirp very loudly.

• They don't chirp (they are quiet / silent).

• They do not have any wings.

• They have twice the size of a normal cricket.

The simplest "eyes" developed first in single-celled creatures like the Euglena and are just cells sensitive to

• sound

• heat

• light

• magnetism

A new species is likely to start up when a population

• becomes isolated (separated).

• grows really big in number.

• becomes very small in number.

• becomes extinct.

Genetic -?- over time leads to mutations accumulating and traits being selected by the different environments. The two creatures are now reproductively isolated and cannot mate.

• counseling

• engineering

• drift

• testing

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Instead of natural selection being like survival of the fittest, natural selection is more like survival of the

• strongest

• good enough

• weakest

• cutest

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Nature cannot draw up a body from scratch, it can only -?- existing plans.

• erase

• tweak

Due to the energy involved in genetic changes, nature will NOT get rid of a trait if it is just different. It will get rid of a trait that is -?- to that living thing.

• helpful

• harmful

• useless

• ugly

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