Low temperature is the most responsible factor for lack of plants in polar regions.
<u>Explanation:</u>
Due to extreme low temperatures in the polar areas, the soil in this area is completely frozen. In this case, the roots of the plants do not grow very deep. Therefore, there is little or no thick vegetation in this region.
The polar climate is a place where the available temperature is usually lower than cold, icy, snowy and does not get direct sunlight. The Polar Regions, also known as frigid areas. These are planet regions that cover the geographical poles (north - Arctic and south - Antarctic) and are located in the polar Circle.
Answer:
A photon of light hits chlorophyll, causing an electron to be energized.
The free electron travels through the electron transport chain, and the energy of the electron is used to pump hydrogen ions into the thylakoid space, transferring the energy into the electrochemical gradient.
Answer:
from protein
Explanation:
enzyme are proteneous in nature
Before answering the question, you should know that exons/intron systemin the gene exists only in eukaryotes. A gene can have many exons with introns between them, but in RNA maturation, these exons will be joined together to form one RNA to code for one protein (There's no relation between exons number and how many proteins are formed).
In prokaryotes it is different there's no exons/introns, but their gene can be transcripted to a polycistronic RNA which can give after translation more than one proteins.
<span>Aneurysm.
An aneurysm occurs when part of an artery wall weakens, allowing it to widen abnormally or bulge out. The causes of aneurysms are sometimes unknown. Some may be congenital, meaning a person is born with them. An aneurysm may also occur as the result of aortic disease or an injury.</span>
