The correct answer is A.
Toxins and various pollutants increase in concentration through the food chain in a process called biomagnification. This means that the organisms on the top of the food chain, like the herring gull, have many times greater concentration of toxins than the lower food chain level organisms because they prey on lower food chain level organisms. If a herring gull ears 100 herrings, it will have a 100x times greater concentration of toxins in its body than a herring.
<span>The corpus callosum is what connects the left and right cerebral hemispheres of the brain. If it is severed, it would no longer be able to allow the two sides to communicate. In some cases, it is partially transected (severed) in patients that have severe epilepsy. The procedure is called a corpus callosotomy and is only done as a last resort.</span>
The attached body form of Cnidarians would be polyp
Answer:
When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward. This makes the chest cavity bigger and pulls air through the nose or mouth into the lungs.
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