Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..
This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..