Factors that Affect Evolution

The only mechanism of evolution that causes species to develop adaptations is/are...

• Natural Selection

• Non-Random Mating

• Gene Flow

• All of these

• Genetic Drift

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Which of these are true of the case of natural selection shown here

• the green trait is being selected against

• the green trait is being selected for

• the green individuals are less fit

• the green individuals are more fit

• the predator prefers orange beetles or is able to catch them more easily

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Genetic drift is change in the allele frequency of a population due to...

• random chance
• natural selection
• non-random mating (sexual selection)
• artificial selection

Tags

NGSS.HS-LS4-2

Select the best answer based on the image.

• Gene Flow

• Genetic Drift

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Select the best answer based on the image.

• Gene Flow

• Genetic Drift: Founders Effect

• Natural Selection

• Mutation

• Genetic Drift: Bottleneck Effect

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A certain type of plant can produce blue or yellow flowers. During a fire, many yellow flowers are destroyed and now since blue is the dominant allele, the plant reproduces plants that only produce blue flowers.

• Genetic Drift - Bottleneck

• Non-Random mating

• Gene Flow

• Genetic Drift - Founders effect

• Mutation

Tags

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Some birds with shorter beaks enter into a population of birds with much longer beaks, resulting in the hatching of birds with medium-sized beaks.

• Genetic Drift - Bottleneck

• Non-Random mating

• Gene Flow

• Genetic Drift - Founders effect

• Mutation

Tags

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A change in a peacocks DNA caused it to become all white.

• Genetic Drift - Bottleneck

• Non-Random mating

• Gene Flow

• Genetic Drift - Founders effect

• Mutation

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It is hypothesized that small colonies of finches were established on each island when storms would carry them far away from the coastline. Due to the small number of finches that arrived at each island, each population only had certain alleles from the parent population. Over time, the populations varied greatly, both in their size and the roles they filled within the ecosystem.

• Genetic Drift - Bottleneck

• Non-Random mating

• Gene Flow

• Genetic Drift - Founders effect

• Mutation

In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.

• Genetic Drift - Bottleneck

• Non-Random mating

• Gene Flow

• Genetic Drift - Founders effect

• Natural Selection

Tags

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