Which of the following is composed of about one hundred billion galaxies? a. milky way b. moon c. sun d. universe

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane? a. both make it possible for the conditions in the interior to be different from the conditions outside. b. both provide a barrier that keeps water from flowing across it so the interior remains dry. c. both separate the rna that forms in the interior from any rna that might form in the environment. d. both can actively move molecules into the interior or out into the surrounding environment.

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

When ash and dust begin to settle on the ground, they eventually become compacted by