Evolution - Natural Selection

Question 1

struggle for existence

Answer 1

• members of each species compete to obtain resources necessary for life
• predators must be faster. prey must be fast, have camouflage, etc.

Question 2

fitness

Answer 2

• ability of an individual to survive and reproduce in its specific environment
• fitness is the result of adaptations
• low fitness results in death or fewer offspring

Question 3

adaptations

Answer 3

• any inherited characteristic that increases an organism’s chance of survival

Question 4

natural selection

Answer 4

• survival of the fittest - individuals that are better suited to their environment survive and reproduce most successfully

Question 5

descent with modification

Answer 5

• each living species has descended with changes from other species over time