all chordates is the answer
B. Increased fitness of large-beaked birds, leading to natural selection
In a "fight or flight" (life or death) situation, the body has to be ready to defend itself. As an example, if someone where trying to kill you, you would be able to run without getting tired. However, to do this your cells would have to go through anaerobic respiration (the creation of ATP without oxygen). It will not yield as much energy as aerobic respiration, and will result in lactic acid build up (which causes cramps), but it will allow you to be able to run or to fight for your life in a critical situation.
Answer:
Explanation:
Both nitrate ions and ammonium ions can be taken up by plants (some prefer one to the other). These ions provide nitrogen for the plant to make its own amino acids for protein synthesis. Except in very high nitrogen soils, the addition of extra nitrate will stimulate plant growth.
Answer:
Organelles are small structures that exist within cells and perform specialized functions. All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms.
Explanation:
