The correct answer is A. Quantitative traits
Explanation:
In genetics, quantitative traits refer to traits or phenotypes (observable traits) that depend on many factors including multiple genes and actions in the environment. These traits differ from other traits because the traits tend to be more diverse in a population. In the case presented, the shell color in clams is an example of a quantitative trait because this phenotype is the result of three different each and each gene contains two alleles which means the color depends on many factors. Additionally, as most quantitative traits there is a higher variation in the phenotype considering clams can have different hues.
The neurons that release ADH and Oxytocin (called neurosecretory cells) have their cell body in the hypothalamus and their axons extend down into the posterior pituitary where they release these hormones into the bloodstream. ... Not only does it regulate the release of hormones, but it controls body temperature.
When you live closer to the equator, the climate is warmer than areas closer to the north and south poles. When elevation is higher the atmosphere is thinner and colder. Places near water tend to have more precipitation compared to places like deserts. Because there’s more water that can actually come out of the clouds.
I hope that helps at least a little