Penny is an intensely shy person who rarely attends social gatherings. In addition, she normally will not accept dinner invitations and refuses to speak in public, even if it is among a group of friends. Penny MOST likely suffers from disorder.

social anxiety disorder

Explanation:

social anxiety disorder is the fear of being judged by people or negatively assessing them, or rejected in a social  situation

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.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.