Cephalization describes the process by which organisms develop a distinct head. The head of a cephalized organism contains a concentrated group of nerves, or brain, that controls the rest of the organism, as well as specialized organs for consumption and perception, like mouths, eyes and ears. Cephalized organisms exhibit a distinct division between parts of the body; they have a front, back, top and bottom. These animals comprise the bulk of animals that are encountered on a daily basis.
sea star following organisms exhibits cephalization
Answer:
Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere
Explanation:
Answer is D. Nitrogen fixation.
The root nodules of some plants contains Rhizobium bacteria which fixes atmospheric nitrogen into soil as Ammonia. Ammonia is converted into nitrate which is the most usable form of nitrogen in the soil. Nitrate is absorbed by the roots of the plants, from plants nitrogen reaches to animals when they eat plants.
Drinking too much water (and its absorption) causes dilution
of electrolytes (ions and anions) in the body. If the body does not bring back the
homeostatic balance (by shedding much
water through urine), there could be an imbalance (hyponatremia) that could
affect your muscle and nervous system that
depends on electrolytes to function. Your
nerves require sodium ions to transmit an
impulse while your muscle cells require
calcium ions to enable their contraction, hence one of the symptoms excess
hydration will be frequent cramping.
