The p53 gene is the body's natural mechanism for stopping tumor growth.

This natural mechanism for seed dispersal is similar to that used by other milkweed plants.

There are natural mechanisms for reassimilating them, and their concentrations have thus reached low equilibrium levels.

One thing in their favor is a natural mechanism that forces them into summer dormancy.

Kills like these can be viewed as natural mechanisms for regulating the population of exceptionally abundant fish.

Humans have this natural mechanism, but have learned not to pay attention.

The Mooffs did not appear to have a natural mechanism for grasping things.

A number of natural and man-made mechanisms can affect the global energy balance and force changes in the Earth's climate.

Survival of the fittest was a superb natural mechanism which we damaged.

During the primary recovery stage, reservoir drive comes from a number of natural mechanisms.