Principles of evolution

Question 1

What is evolution

Answer 1

is defined as the change in one or more characteristics of a population of organisms
over time.

Question 2

What are the principles of evolution?

Answer 2

1- is defined as the change in one or more characteristics of a population of organisms
over time.

2- Organisms must compete with each other for a limited supply of natural resources.

3- Those individuals that are best able to survive and reproduce will be selected for through a
process called natural selection.

Question 3

What is differential reproductive
fitness

Answer 3

The ability of some individuals to survive
and reproduce to a greater degree than other individuals

Question 4

Mutation

Answer 4

These give rise to new alleles that didn’t previously exist in the population.
Mutations may be harmful and selected against, or they may be beneficial and selected for

Question 5

Migration

Answer 5

Movement of individuals into or out of a population, which results in gene
flow between two or more populations.

Question 6

Random genetic drift

Answer 6

Occurs when a small group of individuals leaves a population and
establishes a new population in a geographically isolated region. These individuals may
become reproductively isolated from the original population and develop into a separate
species

Question 7

What are the evidence that support evolution

Answer 7

Fossil records
Comparative anatomy
Embryology
Biochemical studies