How does an ectotherm regulate their body temperature? a. by using heat from the surrounding environment. b. by the processes that are involved in the flow of nitrogen through the environment. c. by producing heat within its own tissues.

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

i think it is dna, i'm not totally sure but i think it might be.