<span>a and c could be true
Animals don't have peace treaties with each other and the other two options would both allow a population to increase in size.</span>
Amino acid is to protein as simple sugar is to cellulose.
Amino acids form proteins, the same way simple sugar forms cellulose.
Lipids form fats, it doesn't go the other way round. DNA forms DNA strands, not RNA.
A focus group is an interview conducted by a trained moderator among a small group of respondents in an unstructured and natural manner.
Gills enhance diffusion between aquatic creatures' blood and the surrounding water. They have a large surface area to increase the area available for gas exchange and a lot of capillaries to increase the bloodflow through the gills.
