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IrinaK [193]
3 years ago
8

Why does mature soil contain the why does mature contain most humus?

Biology
1 answer:
barxatty [35]3 years ago
4 0

Answer:

D. Has the most decomposed organic material from trees and vegetation

Explanation:

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Explanation:

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I-                     laci mutant cannot bind to the operator

Is                    laci mutant always bind to the operator

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I+ OC L+, F’   Constitutive

I- O+ L+, F’   Inducible

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