Acts as a messenger between dna and the ribosomes.
a. cytosine
b. thymine
c. rna
d. uracil

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

What’s the student’s scientific question