In RNA, what nucleotide is the compliment to Adenine?

Which pattern most likely came from a gunshot and which one was produced from a blow on the head? explain your answer?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?