Nasion

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..

Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..

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