6. Acorn → Squirrel → Crow → Coyote 1,000 kcal are available for the 1st trophic level, 100
kcal for the 2nd trophic level, 10 kcal for the 3rd
trophic level. How many kcal are available for the
tertiary consumer?
Fill in the organisms and energy amounts on the
pyramid to the right

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.