One difference between mitochondria and chloroplasts is
a) mitochondria use nadh while chloroplasts make nadh.
b) mitochondria produce water from oxygen while chloroplasts produce oxygen from water.
c) mitochondria are only found in animal cells and chloroplasts are only found in plant cells.
d) the calvin cycle occurs in the mitochondria while the krebs cycle occurs in the chloroplast.

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.