Which two organisms are most closely related, based on the tree above?
a. ray-finned fishes and sharks
b. rodents and primates
c. dinosaurs and crocodiles
d. dinosaurs and birds

An enzyme lowers the energy of activation. what does that mean?

What is the correct trna sequence that would match the following mrna sequence.gcgaua

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different