Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..
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A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward b..
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..