Stipe

stipe A stalk, especially of fungal fruiting bodies or of large brown algae...

Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..

Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

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