Why do the plant cells in these two images have different structures?
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A. Because they have different jobs, or functions
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B. Because every plant cell has a different structure
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C. Because the DNA in their nuclei are very different!
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D. Because they are in different stages of development

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 have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. b. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. c. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails.

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates