Do convection currents of thermal energy form in Earth's crust? A. yes, they do because the crust had to much water that cools the thermal energy.
B. no, they don't because the crust has to much water that cools the thermal energy.
C. no, they don't because convection currentd require heated fluid.
D. yes, they do because convection currents require heated fluid.

Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

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.