Answer: d. motor
Explanation: Efferent neurons are motor neurons. They are called efferent neurons because they transport nerve impulses out of the central nervous system (CNS) to effectors such as muscles or glands.
Answer:
the answer is B, The activation energy must be reached.
Explanation:
Answer:
C. growth of plants after a forest is destroyed by fire
Explanation:
When the ecological succession occurs on the land or region which was never inhabited by plants previously, the process is called primary succession. On the other hand, secondary succession occurs on land where the existing vegetation was destroyed by some disturbances. Secondary succession is a fast process compared to the primary succession as the soil is already present to support the growth of plants.
Among the given examples, the growth of plants after the vegetation of forest was destroyed by fire represents the process of secondary succession. Growth of vegetation on bare rocks, in the cracks in the concrete surface, or after the melting of glaciers represents the process of primary succession.
Ok, I'm not 100% sure this is correct, given the context of the situation, but basically, the cell membrane helps the cell maintain homeostasis by keeping what needs to be in in & what needs to be out out. If it weren't for the cell membrane having the structure it does, all kinds of things could get into the cell & completely kill it from filling it with too much stuff, or the wrong things could get in (say, things with a really odd pH) & damage it badly. Or, it could let things get out extremely easily, such as enzymes and ions the cell needs to function properly.
Hope this helps!
Answer:
Iodised salt (also spelled iodized salt) is table salt mixed with a minute amount of various salts of the elementiodine. The ingestion of iodineprevents iodine deficiency. Worldwide,iodine deficiency affects about two billion people and is the leading preventable cause of intellectual and developmental disabilities. Iodine is needed by our thyroid gland to help regulate the proper development and metabolism of both brain and skeleton of our body.
<em>Hope this helps</em>
<em>-Amelia The Unknown</em>
