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Where two organism reproduce and have a offspring like themselves.
Explanation:
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4. p.complement system c.saliva b.sneezing
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Tree planting is the safest solution to pollution. Save the earth, save our environment. Don't be cruel, conserve your fuel.
Amino acids are the monomers that make up proteins. Amino acids are made of a carboxyl group (Carbon, Oxygen, Hydrogen), an amino group (Nitrogen and two Hydrogen), and finally an R group which differs in each amino acid. That R group is what makes each amino acid different! They can also act as enzymes. Essentially enzymes act as biological catalysts and control the functions of the cell and build cells.