What about this DNA molecule would change if its hydrogen bonds were broken? 1)Structure A would detach from structure B. 2)Structure C would detach from structure D. 3)Structure B would detach from structure C. 4)Structure A would detach from structure D..

they have sperm in my gf's mouth

explanation:

what bodys are there orbiting?

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

c is the answer. hope this