A. Evolution
Evolution is the biological change process by which descendants come to differ from their ancestors.
Answer:
A fat molecule comprises of a glycerol backbone and three fatty acid tails.
The structure of phospholipids comprise of two fatty acid tails instead of three. The third carbon of the glycerol backbone is attached to a phosphate molecule. The phosphate molecule is absent in the structure of a fat molecule.
Answer:
A. Populations were separated through geographical isolation.
Explanation:
The information stored in the order of bases is organized into genes: each gene contains information for making a functional product. The genetic information is first copied to another nucleic acid polymer, RNA (ribonucleic acid), preserving the order of the nucleotide bases. Genes that contain instructions for making proteins are converted to messenger RNA (mRNA). Some specialized genes contain instructions for making functional RNA molecules that don’t make proteins. These RNA molecules function by affecting cellular processes directly; for example some of these RNA molecules regulate the expression of mRNA. Other genes produce RNA molecules that are required for protein synthesis, transfer RNA (tRNA), and ribosomal RNA (rRNA).
During a phase named anaphase I, each chromossome goes to the opposite side of the cell from where it originally was.
Answer:

Hope it helped,
Happy homework/ study/ exam!