(7) the carbon-oxygen cycle illustrates how
a) herbivores give off oxygen
b) producers give off oxygen
c) all organisms give off carbon dioxide
d) both b and c

(8) when animals excrete urea, which type of organism is responsible for converting this waste into a form that is usable by plants?
a) decomposers
b) lichens
c) climax community
d) saprophytes

This problem has been solved! see the answerfor aerobic respiration, a variety of substances must be in a state of influx across the inner membrane. assuming a brain cell in which glucose is the sole energy source, indicate for each of the following substances whether you would expect a net flux across the membrane and if so, how many molecules will move in which direction per molecule of glucose catabolized.- electrons-pyruvate-oxygen-atp-adp-acetyl coa-glyceral-3-phosphate-nadh-fadh2-oxaloacetate-water-protons