Biology · Evolution

Option A: An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment. Option B: Polymorphism, as related to genomics, refers to the presence of two or more variant forms of a specific DNA sequence that can occur among different individuals or populations. The most common type of polymorphism involves variation at a single nucleotide (also called a single-nucleotide polymorphism, or SNP). Option: C A niche is defined as the role of species plays in a community including behaviour and influence. Niche is also defined as the ultimate distributional unit within which a species is restrained by the limitations of its physical structure and its physiology. Two species evolve to become different to reduce competition. So that species can coexist. Ecological Specialization refers to how many species limit themselves to small diets- or habitat niches, as a result of evolutionary trade-offs.

An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment. 

Polymorphism, as related to genomics, refers to the presence of two or more variant forms of a specific DNA sequence that can occur among different individuals or populations. The most common type of polymorphism involves variation at a single nucleotide (also called a single-nucleotide polymorphism, or SNP).

A niche is defined as the role of species in a community including behaviour and influence. Niche is also defined as the ultimate distributional unit within which a species is restrained by the limitations of its physical structure and its physiology. Two species evolve to become different to reduce competition. So that species can coexist. 

Ecological Specialization refers to how many species limit themselves to small diet- or habitat-niches, as a result of evolutionary trade-offs.