Which of the following steps in the nitrogen cycle takes place after animals eat plants? A) Decaying waste returns nitrogen to the soil.
B) Bacteria on plant roots fix nitrogen to make it usable.
C) Plants use nitrogen from the soil.
оо
O D) Lightning changes nitrogen gas into nitrogen compounds.

A. Decaying waste returns nitrogen to the soil.

Explanation:

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the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands