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This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..
Plants produce hormones to regulate their growth. Auxins, for instance, influence plant growth. Know the role of auxin i..
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..