The branch of biology dealing with interactions along organisms and between organisms and their environment is called Ecology, I believe.
Because rising temperatures would cause
Droughts
Heat waves
More forest fires
Melting Ice caps
Floods
and more severe storms.
I believe the answer is all of the above
The substance that helps keep the integrity of the bacterial cell wall intact is known as the peptidoglycan. Others also refer to is it as murein or mucopeptide. The bacterial cell wall is necessary for survival because of the high internal pressure present inside of bacteria. Under normal conditions, if the cell wall is removed the bacterial cell will burst.
The peptidoglycan is a layer that can be used to distinguish gram positive bacteria from gram negative ones. G(+) bacteria have a thick layer of this while G(-) have a thinner ones.
