Define competition and distinguish between two different types of competition. On intertidal rocky shores we see obvious examples of the zonation of species, where some species have different distributions than others. Larvae use differnt cues for settlement. Different microhabitats favorable for different species. Differential susceptability to predators.
Cold water is more Dense and therefore sinks.
Low biomass in deep sea reduces the amount of Oxygen used up. Cold water also holds more Oxygen. Distinguish between features of species with lecithotrophic and planktotrophic larvae. Give three differences. Suppose a sea anemone is living in an isolated tidal pool and a rainstorm occurs at the time of low tide.