Select the correct arrow.
Which arrow correctly shows the flow of heat?

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

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?