Answer:
student 4 bcoz thymine is replaced by uracil in RNA
They have to have a higher density than water to have the ability to stay on the sea floor. Otherwise they would just float to the surface of the water
double stranded molecule does not describe the structure of RNA. Most RNA are single stranded with partial double stranded regions. RNA has basic component as the DNA that is have four nitrogenous base, contain phosphate group and have 5 carbon sugar.
Answer:
have an open circlitory system
Explanation:
