Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..