Species A’s population will decrease due to limited space. <em>(I think. I'm sorry if I'm wrong.)</em>
A watershed describes an area of land that contains a common set of streams and rivers that all drain into a single larger body of water, so stagnant water in a swamp
A. the distribution of sand on an ocean floor
The number of phenotypes produced for a given trait depends on how many genes control the trait. Anyhow, The distribution of phenotypes for a typical polygenic trait can often be expressed as a bell-shaped curve.
Many traits are controlled by two or more genes and are, therefore, called polygenic traits<span>. Each gene of a polygenic trait often has two or more alleles. As a result, one polygenic trait can have many possible genotypes and phenotypes.</span>
