Please please help If the sequence on a mRNA strand was UCACA, the complementary strand of DNA would be:
TGUGU
AGTGT
GACAC
AGUGU

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

answer; projective;