ENVS200 Chapter Notes - Chapter Chapter 5: Semelparity And Iteroparity, Seed Bank, Bryozoa
10 Feb 2018
School
Department
Course
Professor
Document Summary
Population: a group of individuals of one species in an area, though the size and nature of the area is defined, often arbitrarily, for the purposes of the study being undertaken. Unitary: those that proceed by a determinate pathway of development of a tightly canalized adult form, e. g. all arthropods and vertebrates. The contrast is with modular organisms in which growth occurs by the indeterminate iteration of repeated units of structure (modules: unitary organisms: birds, insects, reptiles, and mammals. Modular: those that grow by the repeated iteration of parts, e. g. the leaves, shoots, and branches of a plant, the polyps of a coral or bryozoan. An individual module, starts a life as a multicellular outgrowth from another module and proceeds through its own life cycle to maturity and death, even though the form and development of the whole genet are indeterminate.
