M9L2 Review

What is fitness in the context of natural selection?

• The ability to survive and reproduce in a specific environment

• When humans choose to breed organisms

• Forces such as disease affecting survival

• Organisms best suited to their environment

According to Darwin, what was doing the selecting in natural selection?

• Humans

• Nature

• Predators

• Scientists

What is the main factor that determines which organisms survive according to natural selection?

• Human intervention

• Environmental pressure

• Random chance

• Fitness

Which of the following is NOT a condition for natural selection?

• Nature selecting organisms

• Human breeding of organisms

• Environmental pressures

• Fitness of organisms

What is the significance of the term "survive" in natural selection?

• To live longer than others

• To reproduce and pass on traits

• To be the largest organism

• To be the fastest organism

Which of the following is an example of environmental pressure?

• Breeding by humans

• Lack of food

• High fitness

• Camouflage

What are accidental changes in DNA called?

• Adaptations

• Mutations

• Variations

• Selections

What is the role of mutations if they are helpful?

• They are ignored

• They help organisms survive

• They are removed

• They cause harm

What is the term for members of a species being alike but not exactly the same?

• Variation

• Mutation

• Selection

• Adaptation

What is the benefit of pandas having big wrist bones?

• Better swimming

• Easier climbing

• Eating bamboo

• Running faster