The cichlid fish feeds itself by stealing scales from other fish. They can have either a left-slanted or right-slanted jaw. This jaw slant is hereditary and both phenotypes persist in the species. Hori proposed that the frequency of one type depended on the relative frequency of the other, because a left-slanted fish would have a strong advantage in a population of mostly right-slanted fish and vice versa (the fish they prey upon would be less vigilant for the less frequently attacked side). Hori found that the frequency of the two traits oscillated around an equilibrium, supporting a:.

30 points in a citizens elect the president as head of government separately from the legislature. question 1 options: parliamentary democracy communist state presidential democracy autocratic state question 2 (1 point) this form of government has only a single political party. question 2 options: communist democratic autocratic parliamentary question 3 (1 point) this is a government controlled by one person with absolute power. question 3 options: communist democratic autocratic parliamentary question 4 (1 point) a government is a government system where all citizens that choose to vote have a say in their government. question 4 options: communist democratic autocratic theocracy question 5 (1 point) in a the people elect the legislature, and the legislature chooses the head of government. question 5 options: parliamentary democracy communist state presidential democracy autocratic state