Would an organism that develops a trait that helps it survive in its environment have a better chance of reproducing and passing that trait on to the next generation? Why?

Yup, it would!

Explanation:

A helpful trait (as an example, camouflage), would give it an advantage over organisms that don't. Ones without camouflage would most likely get eaten because it stands out, while the one who has camouflage would live long enough to breed. Overall, it boils down to living longer. I hope this helped!

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.