I need help please?

Question

human populations are not subject to the same type of biological factors that influence other populations? is this true?

Answer 1

Yes its true--up to a point.

* Most people don't have to change their patterns of activity to avoid getting eaten by some other animal;
* because of technology, humans produce more food than we need, so the human population is not limited by food; however, distribution of food is not equal, so people in poorer nations, and the poorest people in wealthy nations still die of starvation;
* medical technology has nearly eliminated infectious disease as a control of human population, again, with the exception of poorer countries that lack medical care
* the survival rate of human infants is not related to population size as it is in animal populations - the survival rate of human infants is related to wealth

Answer 2

This is only true because humans have advanced enough in technology so that biology no longer completely controls us. Antibiotics and vaccinations are excellent examples. If we were living under natural biological laws, our population size would be limited by diseases. However, with prevention, we've escaped much of this. In other species and populations, there are no vaccines. The Santa Catalina Island Fox, for example, was decimated and almost wiped out when a domesticated dog brought to the island infected one fox with distemper. The dog had a vaccine against distemper, so he didn't die from it - but he was a carrier. The foxes, however - a species that hasn't had the benefit of human technology - had no natural defense and thus almost went to extinction.

Hospitals are another prime example of human intervention in natural biological forces. Do other animals get the benefit of IVs, defibrillators, etc? No, so we are prolonging the lives of humans unnaturally.

Agriculture also messes with normal biology. We've manipulated plant and animal genes in order to get more food for less space and energy input. That means the world can support more people (for a while, at least. . .). Again, not how other populations are influenced.

We do have at least a few things in common. War is one of them. Populations such as lions and other territorial organisms constantly fight over land and resources. Don't humans do the same thing?