Biodiversity Genetic Diversity

Environmental factors do affect genetic diversity

• True

• False

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The number of different species in an area is referred to as its _______________.

• population
• genetic diversity
• biodiversity
• Niche diversity

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The combined genetic information of all members of a particular population forms a

• phenotype

• gene pool

• population

• niche

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The variety of different types of genes in a species or population

• Speciation

• Genetic variation

• Artificial selection

• Evolution

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All the genes, including all the different alleles for each gene, that are present in a population

• Population

• Gene pool

• Inherited characteristic

• Species

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Mutations are important because they bring about

• death of the organisms in which they develop.

• benefits fro the individual not for the population.

• genetic variations needed for a population to evolve.

• changes in a genotype but not phenotype.

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Which of the following is an example of the bottle neck effect?

• Bald Eagles are hunted until near extinction, population recovers.
• Small group of iguanas floats to an island, starts a new population.
• Red fox pups are more likely to survive in a snowy environment if they are born white.
• Farmer chooses seeds from largest apples to plant next year.  This results in larger apples from year to year.

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Success of an organism to survive is determined by which characteristic.

• Dominates environment

• Useful to humans

• Surviving harsh conditions

• Passing genes onto offspring

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Differences among individual members of the same species are referred to as....

• variation

• natural selection

• fitness

• adaptation

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A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of sandbars and tiny islands have formed between the island and the mainland. What is the most likely effect of this change?

• an increase in mutations in both bird populations

• an increase in gene flow between the bird populations

• an increase in genetic drift between the bird populations

• an increase in mutations in the island population

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