Assuming in the sense you are talking I believe you are looking for the three modes of selection which are Directional, Disruptive, and Stabilizing.
Answer;
Lordosis
Lordosis is the term for the spine when its alignment is curved anteriorly, instead of side to side, usually as a result of multiple cervical vertebral fractures, as seen in the neck of the elderly.
Explanation;
Lordosis is a dramatic inward curve of the spine and can negatively impact the posture. It is often referred to as a swayback or hyperlordosis- hyper meaning excessive, and lordosis being the inward curve.
Answer:
In its simplest definition, hydrolysis is a chemical reaction in which water is used to break down the bonds of a particular substance. ... Hydrolysis can also be thought of as the exact opposite reaction to condensation, which is the process whereby two molecules combine to form one larger molecule
Explanation:
What would mostly likely ensure the survival of the fish is either they evolve or they have great skills of defense. For example, the puffer fish, stingray, and turtle.