Arks) 1. How do the levels stay balanced as a constant percentage? Explain in terms of gas exchange in photosynthesis and cellular respiration.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

i believe it is c: genes for body color and wing size are inherited separately from each parent.

answer; blank(1); cervical; blank(2); lumbosacral;