Vascular tissue is found in shoots, leaves, flowers, and a. mosses b. lichens c. roots d. liverworts

C. roots is where vascular tissue is also found

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.

is this a psat question, if so do not cheat try your best.