Lesson 7 - Darwin And Natural Selection Flashcards
1
Q
What is a mutation?
A
It is any change in the genetics of an animal/living things.
2
Q
How are fossils made?
A
After all the flesh and muscles have rotted away, they can be under rock or land and later may be found.
3
Q
What is natural selection?
A
Natural selection is the process by which selection forces result in the less fit individuals of a population dying out.
4
Q
What can fossils help us work out? (Decide all that work)
- The shape and size of the organisms
- The structure of the organisms’ bodies
- Where the organisms lived.
- How long ago the organisms died.
A
All of them
5
Q
Do bones and teeth decay after a long period of time?
A
Yes
6
Q
What are phenotypes?
A
The difference in external appearance.
7
Q
What does a polar bear’s thick, white coat help with?
A
It helps the bear camouflage in the snow and it also keeps them warm.
