C. Surface Zone- The surface zone of the ocean is most affected by the weather. Currents, waves, storms, and winds all affect the surface zone without affecting the transition, deep, or abyssal zone.
answered: Guest
the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.