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Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..
A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..
The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..
This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..