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This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..