Biology, 07.12.2019 06:31 trejo282961
Petrification occurs a. shell, bone, or wood is replaced with dissolved minerals. b. dead organisms are exposed to oxygen and calcium carbonate. c. a cast fossil is later filled with minerals. d. an organism is completely preserved in ice or oil.
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Describe the primary and secondary immune response in terms of speed and number of antibodies produced?
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When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection
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What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms
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Petrification occurs a. shell, bone, or wood is replaced with dissolved minerals. b. dead organisms...
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