Unit 2- Speciation Flashcards

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1
Q

Name 3 different ways a species can become extinct?

A

Fast environmental change, new species develop, new preditors, new disease, can’t compete with new species, catastrophic event.

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2
Q

What are the 3 different way in which fossils are formed?

A

1) gradual replacement by minerals (not easily decayed)
2) form impressions (clay makes a cast)
3) preservation (no oxygen etc)

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3
Q

What is speciation?

A

The development of new species

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4
Q

What is isolation?

A

When a species is seperated

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