Biology, 22.01.2021 19:10 bowmanari2154
Four different ecosystems each have the same number of organisms overall, but they have different numbers of species.
Which ecosystem has the greatest chance of being devastated by a disease?
I 10 1,500
II 50 1,500
III 100 1,500
IV 200 1,500
Answers: 1
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Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.
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Four different ecosystems each have the same number of organisms overall, but they have different nu...
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