Typically many more species r strategists in a given area than K strategists - are able to diversify into different environments much more quickly. Body size - as related to both population growth characteristics and metabolism. Direct relationship between body size and metabolic rate. As a general rule, metabolic rate increases with body size. However, relative metabolic rate has an inverse relationship to body size.
Smaller organisms consume more energy per gram than larger organisms.
Homeotherms - body temperature regulated internally. All are related to predictions of vertebrate diversity in different regions of the world.