Is cloning and genetic engineering ethical?

no because the risks associated with reproductive cloning in humans introduce a very high likelihood of loss of life, the process is considered unethical.

Explanation:

yes

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.