4.1 Vocabulary

Question 1

What is a Variation?

Answer 1

Visible or invisible differences between individuals.

Question 2

What is a Adaptation?

Answer 2

A variation that gives a survival advantage to an individual.

Question 3

What is a Mutation?

Answer 3

Changes in the genetic material (DNA) of an ecosystem.

Question 4

What happens during Selective Advantages?

Answer 4

What happens is that it increases the offspring’s chances of survival.

Question 5

What happens during Selective Disadvantages?

Answer 5

What happens is that it reduces the offspring’s chances of survival.

Question 6

What is Natural Selection?

Answer 6

The process whereby the characteristics of a population of organisms change over time because individuals with certain heritable traits survive specific local environmental conditions and, through reproduction, pass on their traits to their offspring.

Question 7

What is Sexual Selection?

Answer 7

Selecting characteristics based on attracting a mate.

Question 8

What is Selective Pressure?

Answer 8

Environmental condition or conditions that select for certain characteristics of individuals and select against others.

Question 9

What is a Mutagen?

Answer 9

Something that causes an increased rate of mutation.

Question 10

What is Biological Species?

Answer 10

A group of reproductively compatible populations.