Answer:
Pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.
Explanation:
It depends on the question
Answer:
An ore is mined so that Metals can be removed from it.
Explanation:
An ore is ought to be mined so that it can be refined, the waste elements are removed from it, and the valuable elements, such as metals are kept.
Ores if not mined are of no use they are a pile of dirt until processed and therefore, to bring out the real value of an ore, it has to be mined and processed
<span>it comes and goes through the madreporite - a small valve like structure</span>
Answer:
<em>The correct option is D) The expression of certain genes is affected by temperature.</em>
Explanation:
There are various factors which control the regulation of a gene. Temperature can be a regulatory factor for certain genes.
Probably, during the warm temperatures, the proteins regulating the fur colour to become reddish brown become activate these genes. As a result, the fur becomes evident.
In the winter, the enzymes controlling the fur might become degraded. A s a result, the genes are not able to express themselves. Hence, a white coat occurs.