The oceanic crust cycles. New crust is created at the mid-ocean ridges. The new material is and pushes the older material. As the material spreads outward, it becomesanddense. Eventually, the old oceanic crust hits the continental crust and, forming a . The reason the oceanic crust subducts is because. The crust is then returned to the earth's, heats and cools in currents until one day it will. PLEASE HELP

What happens when the cell copies its chromosomes

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.