Medullary Sheath

A layer of myelin encasing (and insulating) the axons of medullated nerve fibers...

A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..

The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

You will also like...