Options:
A.
B.
C.
D.
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Earlier discussion
1 older comment kept for context.
isaac alamu
option A is very correct, digestion is the process whereby food is being broken down into smaller pieces in order to release energy.egestion is when an organism takes in substances.excreation is the process whereby the waste products are been removed or moved out of the organisms.injection is when living organisms takes in substance.OPTION A IS CORRECT.