Selection Pressures

The phrase "Survival of the Fittest" would best describe...

• Natural selection

• Artificial selection

• Selective breeding

• None of the above

Tags

NGSS.MS-LS4-4

The beaks of finches found on various Galapagos Islands differed based on:

• size of the island

• length of their wings

• what was available for food

• the predator that hunted them

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Which variation would be most likely to benefit any organism, regardless of environment?

• The ability to produce energy more efficiently.

• The ability to swim deeper.

• Bigger claws and teeth.

• Markings that it blend into its background.

In the phrase "survival of the fittest," the term "fittest" refers to:

• the biggest organisms

• the best adapted organisms

• the best smartest organisms

• the best fastest organisms

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

When nature "selects" a variation, that means that the trait:

• causes the population to shrink

• helps prey escape predators

• gets passed long from generation to generation

• has brought out a new species

Tags

NGSS.MS-LS4-4

Which best describes the role of mutations in natural selection?

• Mutations help an organism to better survive in their environment

• An organism may acquire a helpful mutation by interacting with the environment

• A mutation may result in a beneficial trait that makes an organism more likely to survive and reproduce

• Organisms with certain traits are more likely to win competitions for mutations

Tags

NGSS.MS-LS4-4

Which organisms are most likely to survive?

• the best adapted

• the fastest

• the strongest

• the most domesticated (tamed)

Tags

NGSS.MS-LS4-4

The long and sharp beak of a woodpecker is an example of:

• Natural Selection

• Selective Breeding

Tags

NGSS.MS-LS4-2

Which of the following is an example of a selection pressure in an ecosystem?

• Predation by a new predator species

• The presence of abundant food resources

• Stable climate conditions

• Lack of competition for resources

Tags

NGSS.MS-LS2-4

How do selection pressures influence the process of natural selection?

• They create new species directly

• They determine which traits are advantageous

• They eliminate all genetic variations

• They cause mutations to occur

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-2