Poison dart frogs live in the rainforest. they produce a poison by eating toxic fire ants. the only known predator is a snake, liophis epinephelus. which of the following factors is most likely a density-independent regulator of population growth of poison dart frogs in the rainforest?
a) clear cutting the rainforest
b) limited food source
c) susceptibility to disease
d) increase in population of liophis epinephelus

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.

satellites are frequently used to make observations of the orbit on earth

correct answer is a. and d.