A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..
Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..