Important functions of these biomolecules include muscle development, acting in the immune system, and acting as enzymes.

Proteins help in the development of muscle, acts in the immune system and also as enzymes. They are considered as a class of nitrogenous organic compounds that are comprise of large molecules which contains one or more long chains of amino acids and are a vital portion of all active organisms.

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.

true is the final answer!