Biology

Biology, 11.09.2019 21:10, alexsan5537

How is usable nitrogen obtained by animals?
a. they produce it in their chloroplasts
b. they get it by eating plants.
c. they get it from the soil.
d. they breathe it in from the air

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Biology, 28.07.2019 15:50, chrisayy

The majority of earth's atmosphere is nitrogen, n2. the percentage of nitrogen in earth's atmosphere remains constant as prescribed by the law of conservation of matter and because it is a reasonably non-reactive gas. like carbon, nitrogen is cycled through earth's spheres. however, nitrogen can be converted into forms usable by plants and animals, either by lightning or bacteria. once converted to usable forms, nitrogen is able to cycle the rest of the way through the ecosystem. but in order to be made available to life forms on earth, nitrogen must be fixed or covered into a usable form by lightning strikes or a) bacteria. b) decomposition. eliminate c) producers. d) volcanoes.

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Biology, 15.10.2019 23:30, jessemartinez1

how is nitrogen obtained by animals? a. they breathed it in from the air. b. they get it from the soil. c. they get it from eating plants. d. they produce it in their chloroplasts.

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