Asked by jonothan
Recalling the Distribution of Traits in Organisms
There is a normal distribution of traits seen in natural selection, where the medium trait is favored. However, the distribution of traits is altered when factors in the environment change and influence natural selection. These environmental factors alter the selection of traits passed to generations and can have an effect on the biodiversity on Earth.
Which of the following explains biodiversity?
the total number of organisms on Earth
the total variety of organisms on Earth
the total size of organisms on Earth
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Answer: the total variety of organisms on Earth.
Explanation: biodiversity refers to the variety and variability of life — species diversity, genetic diversity within species, and ecosystem diversity. It is not simply the total number of organisms or their size. Environmental changes and natural selection can alter trait distributions, which in turn can increase or decrease biodiversity (by driving adaptation, speciation, or extinction).
Explanation: biodiversity refers to the variety and variability of life — species diversity, genetic diversity within species, and ecosystem diversity. It is not simply the total number of organisms or their size. Environmental changes and natural selection can alter trait distributions, which in turn can increase or decrease biodiversity (by driving adaptation, speciation, or extinction).
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