-Density-independent factors are factors such as weather and climate, that exert their influences on population size regardless of the population's density. In contrast, the effects of density-dependent factors intensify as the population increases in size.
-Density-independent limiting factor
have the same effect regardless of population size, for example - If there is a wild fire, the fire destroys all the animals in the forest regardless of how many animals there are. The fire does not care how big the population is.
blood is punped our of the heart very fast which means it would need a blood vessel witch thick walls to withstand the pressure. thin walls would cause the blood vessle damage and may evwn break as it wouldn't be able to withstans the pressure.
