Can someone help me with this please

Which level of consumer had access to the smallest apply of energy

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim