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Answered by Anonymous
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(1). Water enters into the root xylem by the process of diffusion through root hairs.

during photosynthesis water is constantly evaporated, this creates a kind of suction from the cells of a which pulls up water through the xylem vessel.

(2). The majority of mammals (including humans) utilize a double circulatory system. This means we have two loops in our body in which blood circulates. One is oxygenated, meaning oxygen rich, and the other is deoxygenated, which means it has little to no oxygen, but a lot of carbon dioxide.

(3). Although it does not contain any digestive enzymes, it plays an important role in the digestion of fats. Bile juice has bile pigments such as bilirubin and biliverdin. These break down large fat globules into smaller globules so that the pancreatic enzymes can easily act on them.

(4). Amoeba consumes food with the help of pseudopodia . Pseudopodia are temporary finger-like projections of the cell surface, which fuse over the food particle. ... It is inside this food vacuole that complex substances are broken down into simpler ones. These are then diffused into the cell cytoplasm.
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