Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..
Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..