Unit 5 test review

Survival of the fittest can best be described as –

• the process by which only the strongest of a species will be able to survive and reproduce

• the process in which organisms that are better adapted to their environment will have a better chance of surviving and reproducing

• the reason the strongest of the species will not be able to reproduce as often as others

• the reason weaker organisms in a species will always be killed by predators

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Adaptations that result from natural selection are expected to increase the fitness of an organism. In terms of natural selection, which of the following best describes fitness?

• Being able to escape from predators

• Being among the strongest organisms in a population

• Being able to survive, find a mate, and produce offspring

• Being able to survive long enough to reach the adult

Tags

NGSS.HS-LS4-4

"Survival of the fittest" describes which theory

• Natural selection

• Selective breeding

Tags

NGSS.MS-LS4-4

individuals with alleles for an extreme type are more likely to survive and reproduce

• stabilizing selection

• directional selection

• disruptive selection

• genetic drift

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-3

NGSS.HS-LS4-4

the selection pressure favors the extreme phenotypes, dividing the population into 2 distinct groups

• directional selection

• stabilizing selection

• geographic selection

• disruptive selection

Tags

NGSS.HS-LS4-4

Individuals with intermediate traits are more likely to survive and reproduce

• stabilizing selection

• directional selection

• adaptive radiation

• disruptive selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Tall kelp have a distinct advantage over shorter kelp in receiving needed sunlight in their ocean environment

• directional selection

• disruptive selection

• stabilizing selection

• sexual selection

• artificial selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Aspen trees that are over 25 m tend to blow over in high winds; aspen that are under 15 m don't get enough sun

• directional selection

• stabilizing selection

• disruptive selection

• artificial selection

• sexual selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Fish that produce 40,000+ eggs have greater fitness than fish that produce less than this number

• directional selection

• stabilizing selection

• disruptive selection

• artificial selection

• sexual selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Bacteria that are too large cannot obtain nutrients efficiently and bacteria that are too small cannot compete for those nutrients successfully

• directional selection

• stabilizing selection

• disruptive selection

• artificial selection

• sexual selection

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4