C, Acetylcholine is the answer, I hope this helped :)
Answer:
D: Cellular respiration
Explanation:
Because we work in a sea of oxygen (air is 20.9% oxygen) it is difficult to measure the small changes in oxygen concentration that occured during respiration. The rate of Cellular Respiration can be measured in the dark by determining the amount of oxygen gas consumed in a period of time.
Hope this helps you out!
Answer:
1. purchasing used clothing to save money and price recycling to conserve on scarce natural resources.
2. Environmental buying a turkey for thanks giving dinner and cultural
Im not 100% sure, but i believe it's crop production will increase.
Answer: tax cuts, increases in military spending, and recessions