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Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .
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Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.
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Biology, 22.06.2019 15:00
What are the three groups of atoms that make up amino acids called
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Biology, 22.06.2019 17:40
According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei
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Cholesterol and other steroids are classified as: a) Fatty acids b) Carbohydrates c) Arachidonic aci...
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