Evolution by Natural Selection

Question 1

Selection Pressures

Answer 1

External Force/Factor that influences the survival + reproductive success of individuals in a population. EX: disease, climate, natural disasters

Question 2

Differential Reproduction

Answer 2

Some individuals pass genes to the next generation and other individuals do not

Question 3

Darwin Concept

Answer 3

• Modification of species over time
• challenged “fixed natural hierarchy”

Question 4

Variation

Answer 4

All the differences
that exist between individuals in a population

Question 5

Inheritance

Answer 5

Parents that successfully meet the challenges of
the environment will pass the genes that built those
advantageous traits on to their offspring.

Question 6

Nature Selecting

Answer 6

The process by which individuals with traits that give them a survival or reproductive advantage are more likely to survive and pass on those traits to the next generation.

Question 7

Adaptation

Answer 7

The result of natural selecting – over time, traits that have evolved in a species because they help individuals survive or reproduce better in their environment