Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
