A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
