According to the biological species concept, individuals belong to the same species if they can interbreed in nature and produce viable, fertile offspring. prezygotic and postzygotic barriers ensure that members of different species do not reproduce with one another. this diagram shows some of these barriers along with examples of the barriers at work.
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Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems
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Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.
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According to the biological species concept, individuals belong to the same species if they can inte...
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