Natural Selection & Adaptation

Natural selection only acts on traits that can be inherited.

• True

• False

Tags

NGSS.MS-LS4-4

Natural selection is the process that enables evolution.

• True

• False

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

In a population of organisms, the fitter individuals leave behind more offspring than the weaker ones. This difference is essential for the process of natural selection.

• True

• False

Tags

NGSS.MS-LS4-4

Genetic changes over many generations of a population of organisms lead to biological diversity. How do adaptations relate to these changes?

• Adaptations are traits resulting from these changes that better help the organisms to survive in their environment.

• Adaptations are traits resulting from these changes that make it harder for the organisms to survive in their environment.

• Adaptations are traits resulting from these changes that cause all of the organisms to die suddenly.

• Adaptations are traits resulting from these changes that have no effect on how the organisms survive in their environment.

Tags

NGSS.MS-LS4-4

Natural selection favors..

• organisms that survive long enough to reproduce.

• organisms that have the longest lives.

• only the strongest and fastest organisms.

• organisms that conserve energy by not reproducing.

Tags

NGSS.MS-LS4-4

Which of the following is true about natural selection?

• Natural selection usually causes a species to change gradually.

• Natural selection does not cause a species to change.

• Natural selection is the only cause of changes in a species.

• Natural selection usually causes a species to change suddenly.

Tags

NGSS.MS-LS4-4

Which of the following best describes how a species changes over time?

• Members of a species that are best adapted to survive and members with unfavorable traits both produce the same number of offspring.

• Diversity among members of the species causes all members to stop producing offspring.

• Members of a species that are best adapted to survive produce offspring with similar characteristics, while members with unfavorable traits do not survive.

• Members of a species with unfavorable traits produce offspring with similar characteristics, while members best adapted to survive do not reproduce.

Tags

NGSS.MS-LS4-4

In order for natural selection to occur...

• all of the organisms within a population must be exactly the same.

• one population must become extinct so another can be created.

• organisms within a population must have some genetic variation.

• there must be more male organisms than female organisms.

Tags

NGSS.MS-LS4-4