5.1 - Evolution

Question 1

Evolution:

Answer 1

Change over time

Question 2

Biological Evolution:

Answer 2

A change in a population’s gene pool over time

Question 3

Gene Pool:

Answer 3

All of the genes present in a population

Question 4

Gene:

Answer 4

A sequence of DNA, coding for a specific trait

Question 5

The 4 primary functions in evolution:

Answer 5

1. Mutation
2. Migration
3. Genetic Drift
4. Natural Selection

Question 6

Mutation:

Answer 6

Changes in DNA

Question 7

Genetic Drift:

Answer 7

Changes in genetic pool occurring by chance

Question 8

Natural Selection:

Answer 8

Traits that improve an organism’s chance of survival or reproduction are passed down more frequently

Question 9

Gene Flow:

Answer 9

Biological evolution changes do to population’s gene pool

Question 10

Fitness:

Answer 10

How reproductively successful an organism is in its enviroment

Question 11

Adaptation:

Answer 11

A heritable trait increasing one’s fitness

Question 12

Artificial Selection:

Answer 12

The process of selection directed by humans

Question 13

Speciation:

Answer 13

The process by which new species are created

Question 14

Extinction:

Answer 14

Disappearance of species from the Earth