Which of the following is a likely explanation for the change in oxygen concentration in response to the time of day? A.) Most organisms increase the rate of respiration at night.

B.) Organisms are performing photosynthesis during the day and cellular respiration at night.

C.) The oxygen produced by photosynthesis during the day is greater than the amount of oxygen used for respiration.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

the answer is: metamorphic rocks often show the presence of fossils, also a

hope i

-lavira: )

1. is geographic distribution

2 is increasing complexity

3 is transitional forms