LON-CAPA A little Evolution Quiz

The Quiz

1. Evolution occurs when

there is no mutation.
there is no genetic variation.
the composition of the gene pool changes.
a population is isolated.

2. Which evolutionary mechanism generates populations whose members are better adapted to their environment?

mutation
gene flow
natural selection
genetic drift

3. The first step in the creation of a new species is

mutation
natural selection
genetic drift
reproductive isolation

4. What is the primary cause of extinction today?

asteroid impact
volcanic eruptions
El Ni�o
human destruction of habitat

5. In many cases, the fossil record shows long periods where organisms didn't change interrupted by short periods of dramatic change. Thispattern is currently explained by the model of

adaptive radiation
gradualism
punctuated equilibrium
genetic drift

6. What is the most recent discipline to contribute evidence of evolution?

molecular biology
biogeography
comparative embryology
biological sciences 10

Correct the quiz.