Consider two populations of birds: an original population on the mainland and a small population on a volcanic island. what data should you collect to determine if they are two different species according to the biological species concept?
a. the relative fitness of the mainland and island individuals.
b. the range of foods eaten by members of the two populations.
c. the degree of genetic difference between the two populations.
d. the physical appearance of the birds in the two populations.
e. the percentage of viable, fertile hybrid offspring formed if the two populations encounter each other.

E. The percentage of viable, fertile hybrid offspring formed if the two populations encounter each other.

Explanation:

The biological species concept is a concept which is  about a group of potentially interbreeding populations which become reproductively isolated from other groups of the same species.

b. regulated is the actual answer to your question.

explanation:

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.