The correct answer is A because metabolic activities can only be carried at our certain temperatures, thus making it essential.
The correct answer is: A lichen.
A lichen is another example of symbiotic relationship between fungi and a plant. The lichen absorbs water and nutrients from the environment and supplies them to the plant. On the other hand, the plant photosynthesizes and provides energy for the lichen. This is an example of a mutual or a symbiotic relationship where two organisms benefit each other.
Attached is a picture of a lichen that grows on a tree.
Trenches are formed by subduction, a geophysical process in which two or more of Earth's tectonic plates converge and the older, denser plate is pulled beneath the lighter plate and deep into the mantle, causing the seafloor and outermost crust ( the lithosphere) the bend and form a steep, V- shaped depression.
The most prominent roles of mitochondria<span> are to produce the energy currency of the cell, ATP (i.e., phosphorylation of ADP), through respiration, and to regulate cellular metabolism. The central set of reactions involved in ATP production are collectively known as the citric acid cycle, or the Krebs cycle</span>
Answer:
I am pretty sure it is B, weathering and erosion. Hope this helps!