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A "Sense of Wonder" report written for Biology. Not extremely detailed, or, even accurate, but yea…

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T-cells are a special type of white blood cell called a lymphocyte. T-cells are part of what makes the immune system in the human body function by clearing infections, preventing concurrent reinfections, protect against auto-immune diseases, and deactivate at a specific time.

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Information on the importance and functions of the placenta.

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Somewhere between the age 50 and 80, microscopic vitreous tissue eventually separates from the back of the retina. If enough of this debris breaks off, it causes a posterior vitreous detachment, characterized by a sudden increase in bug-like spots or "cobwebs" whose shadows are cast on the retina.

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Hunger Drive, What always motivates us to eat certain times?

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What causes drinking? Normally we feel thirsty when our mouths and throats are dry but this is not the whole story.

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The small intestine has a big surface area, probably used for absorption of molecules in a very large amount. The surface area for absorption was increase by the folds of the mucosa (membranous lining and the presence of villi).

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Modern humans is still evolving. Although many believe that natural selection has stopped, now that almost every person alive long enough to have children, a new study from Massachusetts on population prove that evolution is still ongoing.

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How to prevent Diabetes, Cancer, Arthritis and Age Related Diseases and Stay Healthier.

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Nerve Impulse, threshold of excitability, neuron, stimuli, threshold of excitability, the neuron transmits or discharges, all or none law.