Natural selection and speciation

Punctuated Equilibrium implies catastrophic events caused natural selection to speed up due to great environmental changes.

• True

• False

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NGSS.HS-LS4-4

NGSS.HS-LS4-5

Gradualism means Natural Selection would normally happen over many generations and very

• slowly

• quickly

• in space

• beyond time

Tags

NGSS.HS-LS4-4

Over the years, white mice became extinct and darker mice survived. This is

• stabilizing selection

• directional selection

• disruptive selection

• due to exercise

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NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

A physical trait favored by an environmental change can be called an

• adaptation

• extinction

• possibility

• mutation

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Average phenotypes are favored in the environment, while extremes have lower survival rates.

• seasonal selection

• distruptive selection

• directional selection

• stabilizing selection

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NGSS.HS-LS4-2

NGSS.HS-LS4-4

Two populations of the same species are separated by land barriers like rivers or mountains.

• geographical isolation

• temporal isolation

• adaptive ratiation

• behavioral isolaton

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Two populations of the same species do not have the same mating rituals or signals.

• geographical isolation

• temporal isolation

• adaptive ratiation

• behavioral isolaton

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NGSS.HS-LS2-8

NGSS.HS-LS4-5

All the possible gene combinations in a population.

• allele

• gene pool

• genome

• mitosis

Tags

NGSS.HS-LS3-3

The frequency that single genes (alleles) for a trait appear in a population.

• Genome

• Gene frequency

• Genetic Drift

• Population Frequency

Tags

NGSS.HS-LS4-3

NGSS.HS-LS4-4

Changes in the gene pool over time.

• Mitosis

• Genetic Variation

• Gene Pool

• Genetic Drift

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4