Answer:
Allele. An allele is a viable DNA (deoxyribonucleic acid) coding that occupies a given locus (position) on a chromosome. ... An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene.
That would be the synthesis of body mass in a primary consumer (herbivore who eats the plant).
You didn't really provide any possible answers here. However, it's very easy to say that the responsible actors for impulse transmission across the synapses from one nervous cell to another nervous cell is what we call neurotransmitters. These are special molecules that can have different effects when binding onto the required receptor sites.
Answer:
cells have different shapes because they do different things
Explanation:
Each cell type has it's own role to play in helping our bodies work properly and their shapes help them to carry out these roles effectively