B. Is characterized by four different zones.
Answer:
B.
Explanation:
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B - there are 64 different kind of condo a but only 20 amino acids.
They are among the first
colonizers of an environment. This way they break down rocks and make nutrients available for other plants. They help in retention
of water in a habitat and also shelter many microorganisms.
They also decompose organic matter hence play an
important role in the cycling of nutrient in the environment.
The bigger,stronger and more aggressive animal wins the better territory and keeps it safe against others.
