Which of the following elements is most important for respiration? carbon oxygen hydrogen nitrogen

Explanation:

Oxygen of course, because carbon is just the product of respiration, and we don't acutally breathe hydrogen or nitrogen - we might inhale them, of course, but we don't use them. They're just expelled.

Oxygen is used in many processes in our bodies both in big ones such as respiration or molecular ones like many cellular processes.

B. / 2 - Oxygen.

Hope it helped,

BioTeacher101

the cell theory states that all living things including animals, as well as plants, are made of cells.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.