The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Your heart beats over 36 million times a year.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Gregor Johann Mendel, the father of genetics
An example of the founder effect with subsequent adaptive radiation.
X Rays Generated by Accretion of Matter Near a Black Hole