Unit 2- Speciation Flashcards
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.
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)
3
Q
What is speciation?
A
The development of new species
4
Q
What is isolation?
A
When a species is seperated
