Question

Introduction aim observation procedure methodology inference reference conclusion on evolution of brain in vertebrates.

Answer 1

Answer:

Explanation:

The principles that govern the evolution of brain structure are not well understood. Brain to body size scales allometrically.

Small bodied mammals have relatively large brains compared to their bodies whereas large mammals (such as whales) have smaller brain to body ratios. If brain weight is plotted against body weight for primates, the regression line of the sample points can indicate the brain power of a primate species. Lemurs for example fall below this line which means that for a primate of equivalent size, we would expect a larger brain size. Humans lie well above the line indicating that humans are more encephalized than lemurs. In fact, humans are more encephalized than all other primates.