Answer:
O horizon
it is most important for growth of crops
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Enzymes are (usually) specific to the substrates they bind to. Thus, each enzyme has one and only one substrate structure they can metabolize, so even substrates with similar structures cannot be broken down by an enzyme specific to one of them.
Protect. The immune system protects the body from diseases and harmful pathogens. The skeletal system keeps you upright and supports you with help from the muscles.
A divide is the high ground between two drainage basins.
Answer:
The inner or cytoplasmic membrane, impermeable to polar molecules, regulates the passage of nutrients, metabolites, macromolecules, and information in and out of the cytoplasm and maintains the proton motive force required for energy storage.
Explanation: