Biology
BSCS pg 113
Name ____________
Period
Evolution by Natural Selection
1.
Differences among species are the result of . . .
2.
What is the source of variation?
3.
How can humans bring about change in a population of organisms?
4.
What is a species?
5.
What would happen according to Mayr if all individuals born reproduced successfully?
6.
According to Mayr are any two individuals exactly the same? Why does he think this?
7.
What did Thomas Malthus believe about the relationship to humans and our resources?
8.
Which organisms are most likely to reproduce in an environment of struggle?
9.
What are adaptations?

10.
What are the adaptations for the snake caterpillar, flicker and red Irish lord fish?
11.
How do the above mentioned adaptations benefit the organism?
12.
13.
What is the difference between selective breeding and natural selection?
How does competition affect natural selection?
14.
How does predation affect natural selection?
15.
Do individual organisms or populations evolve?
16.
What does “descent by modification” mean?
17.
The theory of evolution explains the origin of ________ and the relationships among ____________ and their________.