nitrosomonas A genus of gram-negative, ellipsoidal or rod-shaped bacteria whose major source of energy and reducing power is from the oxidation of ammonia to nitrite. Its species occur in soils, oceans, lakes, rivers, and sewage disposal systems...
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
