A forest ecosystem located in the northeastern United States currently contains 35 black bears. The ecosystem contains enough energy to support 42 black bears, enough water to support 54 black bears, and enough minerals to support 64 black bears. Assuming that this accounts for all of the resources needed by black bears in this ecosystem, how many additional black bears could the ecosystem support?
A.
160 additional black bears
B.
7 additional black bears
C.
29 additional black bears
D.
19 additional black bears

The Answer would be 19

Explanation: Because they have enough food and supplies to support 19 more

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.