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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
![Female leopard in the Sabi Sands area of South Africa. Note the white spot on its tail, used for com](https://biology-forums.com/gallery/47/medium_27689_23_04_12_3_29_45.jpeg)
![Skull of an Oriental giant squirrel (genus Ratufa) - note the classic sciuromorphous shape of the an](https://biology-forums.com/gallery/47/medium_27692_23_04_12_3_36_52.jpeg)