Blood is a type of epithelial tissue.
Answer the following statement true (T) or false (F)
False
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Surrounding the actin myofilaments are two inhibitor substances: troponin and
The basic functional units of the liver are the
A) hepatocytes. B) stellate macrophages. C) lobules. D) portal areas. E) bile canaliculi.
Humans can see several thousand shades of color but have cone photoreceptors that are sensitive to only three (perhaps four) wavelengths of light. What is the best explanation for why we see so many colors?
A) Color perception is achieved by activation of various combinations between the three cone types. B) Color perception is dependent on the millions of rods as well as cone photoreceptors. C) Shades of color are purely psychological and learned by association with age, infants only seeing in black and white. D) Colors are added and enhanced in the primary visual cortex of the brain.
When the wrong blood type is given to a patient, the antibodies in the patient's blood react with the antigens on the surface of the transfused blood causing a reaction called ________.
A. coagulation B. precipitation C. neutralization D. agglutination