Fracture bed

Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..

This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..

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