Natural Selection Review

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

• adaptation

• extinction

• possibility

• mutation

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All of these finches have different shaped beaks, they are an adaptation to gain access of

• Water

• Food

• Shelter

• Mates

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According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce?

• Some individuals pass on to their offspring new characteristics they have acquired during their lifetimes.

• Some individuals are better adapted to exist in their environment than others are.

• Some individuals do not pass on to their offspring new characteristics they have acquired during their lifetimes.

• Some individuals tend to produce fewer offspring than others in the same environment.

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In natural selection, the selective agent is the

• humans
• mutations
• breeders
• environment

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Mutations are important because they bring about

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• Hardey-Weinberg equilibrium within a population

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Why has antibiotic resistance evolved in bacteria?

• Bacteria reproduce quickly

• Bacteria with a resistance to the antibiotic, passed that trait to offspring

• Bacteria that are resistant reproduce faster than non resistant strains

• Bacteria exposed to antibiotics develop a resistance to them

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What is this an example of?

• diversity of species
• variation
• vestigial structures
• DNA studies

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A rabbit that can easily outcompete other rabbits for food and that can produce many offspring has a high

• sexuality
• mutation rate
• fitness
• adaptability

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What is natural selection?

• a short change over a short time period.

• the process by which organisms better suited for their environment survive and reproduce.

• the process of cells dividing to make new cells.

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Which of the following statements best describes what will most likely occur to the moth populations in the image below?

•  The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.

• The light moths will be captured by predators more easily than the dark moths, and the population of light moths will rise.

• The dark moths will be captured by predators more easily than the light moths, and the dark moths will probably go extinct.

• The light moths will change their wing color to match that of the dark moths.

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