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Why was the transition from “purple bacteria” to “green bacteria” important for the evolution of complex organisms?
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Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?
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What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent
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Why was the transition from “purple bacteria” to “green bacteria” important for the evolution of com...
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