Hi!! I have a few bio questions I would love some help with! (16 points) 4. Which age structure is most likely for a population that has not completed the demographic transition?
a. 50 percent of people below age 15
b. 15 percent of people below age 15
c. 5 percent of people aged 10–14
d. 10 percent of people aged 50–54

9. What is a mixture in which all the components are evenly spread out?
a. solution
b. solvent
c. solute
d. suspension

11. In science, data are
a. always expressed in numbers.
b. gathered from observations.
c. logical interpretations based on experience.
d. usually descriptive.

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.

answer: b

coz red blood cells marrow and circulates the body for 120 days.

i guess because there isn't enough love going around. < 3