A) different species
B) ecosystems with the highest biodiversity
C) ecosystems with low genetic biodiversity
D) biomes
E) populations
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Essay
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Multiple Choice
A) 1 million years
B) 2 million years
C) 1 billion years
D) 2 billion years
E) 3.7 billion years
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Multiple Choice
A) functional diversity
B) genetic diversity
C) ecological diversity
D) species diversity
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Multiple Choice
A) flies
B) cockroaches
C) white-tailed deer
D) panda bears
E) humans
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Multiple Choice
A) frogs, toads, and salamanders.
B) fish, frogs, and salamanders.
C) salamanders, sea anemone, and frogs
D) clams, oysters, frogs, and toads.
E) none of these answers
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Multiple Choice
A) Genetic diversity helps prevent a species from becoming extinct.
B) The phenomenon in which animals with favorable adaptation reproduce more rapidly is called differential reproduction.
C) Geographic isolation is a common mechanism contributing to speciation.
D) By definition, the fittest animals are the largest and strongest animals.
E) A change in environmental conditions can lead to adaptation only for traits already present in the gene pool of a population.
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Multiple Choice
A) They have backbones.
B) About two million species have been identified by scientists.
C) They are resistant to extinction.
D) They have skin or integument similar to mammals.
E) All of these answers.
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True/False
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A) 15%
B) 21%
C) 25%
D) 52%
E) 78%
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A) functional diversity
B) genetic diversity
C) ecological diversity
D) species diversity
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Multiple Choice
A) It enables individuals with the trait to leave more offspring than other members of the population leave.
B) It results in greater genetic diversity in the offspring of those organisms that possess it than in those that do not possess the trait.
C) It causes the ratio of male and female offspring produced to be equal.
D) It results in offspring that are genetically different than the parents.
E) It results in non-heritable traits being passed from parent to offspring.
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Multiple Choice
A) the variety of the Earth's species
B) the genes the Earth's species contain
C) the ecosystems in which the Earth's species live
D) the ecosystem processes of energy flow and nutrient cycling
E) all of these answers
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True/False
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