A phospholipid is a lipid made of a phosphate group with two fatty acids.
A second messenger is a molecule inside cells that acts to transmit signals from a receptor to a target.
Hoped this helped.
~Bob Ross®
Anaerobic respiration is a function that can provide energy to organisms in place of, or in the absence of oxygen, so choice D. would be accurate.
<em>Amoeba </em>is an example of an E<span>ukaryote.
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