Term
|
Definition
| it is the process by which organisms cange over time. |
|
|
Term
|
Definition
| the result is that new species develop from old ones |
|
|
Term
|
Definition
| they are qualities that help organisms survive in their environments |
|
|
Term
| What does genetic variation cause? |
|
Definition
|
|
Term
|
Definition
| they are changes in DNA. they can be passed onto future generations and eventully lead onto new species. if te variation is harmfu, organisms will die and it will not be passed on. |
|
|
Term
| What is the THEORY OF NATURAL SELECTION? |
|
Definition
the survival of organisms that have favorable traits
it was Charles Darwin's Theory
it is used to describe how evolution may occur. |
|
|
Term
| What are the ideas behind THE THEORY OF NATURAL SELECTION? |
|
Definition
OVERPRODUCTION: more offspring produced than can survive
STRUGGLE FOR EXISTENCE: competion for necessities of life.
GENETIC VARIATION: differences in traits (Ex: size color, ability to find food.
SURVIVAL OF THE FITTEST: some variations make organisms better adapted for survival in their environment, (successful reproduction) |
|
|
Term
|
Definition
| a group of organsisms that can mate with another to produce fertile offspring |
|
|
Term
| idividuals with favorable variations ... |
|
Definition
| survive, reproduce, and pass on traits |
|
|
