I thinks its cell division
Answer:
The main purpose of cell respiration is to:
b. convert the chemical energy in sugars into ATP
So we know that to transport materials in or out of the cell, we need to have access to both the inside and outside of the cell. This would require that the protein be a transmembrane protein that reaches both the inside and the outside of the cell.
So in this case, let's look at pore proteins. These are proteins that cross a membrane and act as a pore for the materials that need to cross the membrane.
One example of a pore protein is an aquaporin. These proteins aid in the transport of water into or out of a cell.
Therefore, the answer to your question is: A) Pore proteins.
Answer:
I shall oppose to this notion
personally I think that since there no oxygen on mars the extraterrestrial creatures or alien plants may have alternative means of survival even if there ain't water
Often times, non-human life in an urban ecosystem is more disturbed in a way that changes happen rapidly, such as the soil and plant cover and temperature and water availability