The brittle star Ophiothrix oerstedi produces a small number of larvae which have their own attached yolk sacs for nutrients.These larvae settle and metamorphose after only four days or fewer in the water column.This is an example of which type of development?

MCQs on the field of Marine Biology, from a survey of the origin of oceans and their movements to details of marine food webs, life cycles, and marine zonation. As well as on marine environment and ecology, taxonomy and physiology, and contemporary concerns in the field, including human influences on marine systems.