Classification

question 63

Essay

Classification.Respond to the following statements with reference to the four steps of the nitrogen cycles listed below.
a.nitrogen fixation
b.nitrification
c.denitrification
d.ammonification
-How are bacteria the beginning and end of the nitrogen cycle?

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Definitions:

Endocrine Glands

Organs that secrete hormones directly into the bloodstream to regulate various body functions.

Bloodstream

The flow of blood through the circulatory system of an organism, delivering nutrients and removing waste products.

Gland Duct

A passage or tube in the body through which secretions from glands are conveyed to various organs or body surfaces.

Microvilli

Tiny, finger-like projections from the surface of some cells, increasing their surface area for absorption.