In the material cycle shown below, which processes are represented by letters A and B A- A-excretion, B-respiration

B- A-transpiration, B-excretion

C- A-photosynthesis, B-transpiration

D- A-respiration, B- photosynthesis

What is used to keep track of the gamates and possible offsprings combination

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because