B) Describe 3 ways that carbon is cycled into the atmosphere.
c) What organisms are responsible for cycling nitrogen from the atmosphere into soil and living things?

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.

answer; 60-100; beats per minute

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