What base in RNA pairs with adenine?
uracil
guanine
cytosine
thymine...
Answers: 3
Biology, 22.06.2019 01:30
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.
Answers: 1
Biology, 22.06.2019 03:30
When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it
Answers: 1
Biology, 22.06.2019 08:20
Which characteristics are typical of a human population in the postindustrial stage?
Answers: 3
Biology, 22.06.2019 10:30
All ova contain sex chromosomes corresponding to: x y xx xy
Answers: 2
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