Answer:
D. Eastern Europe is the correct answer.
Explanation:
B is the answer because its a group so yes
Microvilli are the tiny projections in the cell lining the villi. It increases the surface area of absorption thereby increasing absorption.
Microvilli on the surface of epithelial cells such as those lining the intestine increase the cell’s surface area and thus facilitate the absorption of ingested food and water molecules. Microvilli are also sometimes called the intestinal brush border.
The combination of circular folds, villi and microvilli helps absorption by increasing the surface area of the small intestine by 30 to 600 times.
<h3>
Where the Brush border of small intestine cells is formed ?</h3>
The innermost layer lining the lumen of the alimentary canal is the mucosa. This layer forms irregular folds (rugae) in the stomach and small finger-like folding called villi in the small intestine.
The cells lining the villi produce numerous microscopic projections called microvilli giving a brush border appearance found on the apical surface of some epithelial cells. These modifications increase the surface area enormously and help in secretion and absorption.
Microvilli are covered in the plasma membrane, which encloses cytoplasm and microfilaments. Though these are cellular extensions, there are little or no cellular organelles present in the microvilli. Hence, the brush border of small intestine cells is formed of microvilli.
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johanna was avoided by professor stuckup anytime she wore jeans, but professor casual wasn't bothered. johanna learned not to wear jeans around professor stuckup which is result of discrimination training.
Give a brief account on discrimination training.
Discrimination training entails rewarding a behavior (like as pecking) when one stimulus is present but not the others. One of the Bailey's chickens was given two note cards in the image on the left, one of which had a red circle and the other a blue circle. The peck on the red circle strengthened, but the peck on the blue circle did not (this process involves differential reinforcement). The fowl finally restricted its pecking to the red circle. The Baileys also demonstrated discrimination training with geometric figures using note cards with various shapes (such as circles vs. squares).
As long as the animal possesses the necessary sensory equipment, such as color vision, discrimination training is supposed to enable animals like chickens to "tell the difference" between forms (like rectangles or squares) or colors (like green or blue).
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