Natural Selection

What is natural selection?

• When reproduction occurs and mutations happen.

• When a offspring has the traits from its parents.

• When an organism is able to camoflauge in its environment.

• the process whereby organisms that are better adapted to their environment tend to survive and reproduce more offspring.

In a cold environment what would be some adaptive traits? Sellect all that apply.

• thick blubber

• thick fur

• thin fur

• strong muscles

What is a trait?

• a color

• the quality or characteristic of an organism

• the DNA of an organism

• when mutatuons cause extra limbs.

Which of these are possible traits of a rattle snake?

Select all that apply

• venom

• rattle

• hair

• legs

• scales

Can mutations be passed down to offspring?

• Yes

• No

What must organisms do when an environment changes?

• Adapt

• Camoflauge

• become common

• fight

Why are some traits more common in some populations?

• It is random

• organims choose their traits

• common traits are ussualy adaptive and help organisms survive and reproduce

• organisms traits change all the time

Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)

• Variation
• Adaptation
• Behavior
• Environment

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.