Crossing over occurs in prophase of meiosis i. crossing over results in?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

The energy needs of a human population are not affected by

Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea