Details Title: Chapter 3: Ecosystems Description: What Are They and How do They Work Total Flash Cards: 12 Created: 02/03/2009 18:02:29		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Environmental Studies Flashcards
Cards in this set: Term Ecology: Definition The study of how organisms interact with one another and with their nonliving environment Term Levels of organization of matter in nature (5 levels): Definition Organisms, Populations, Communities, Ecosystems, Biosphere Term Organism: Definition any form of life Term Species: Definition Groups of organisms that resemble one another in appearance, behavior, chemistry, and genetic makeup Term How many species on plant earth? Definition 10-15 million Term Why are microbes key to keeping our population alive? Definition Microbes convert nitrogen gas in the atmosphere into forms that plants which produce foods (cheese, tofu) Term Population: Definition A group of interacting individuals of the same species occupying a specific area Term (populations) genetic diversity: Definition Individuals vary slightly in their genetic makeup, which is why they do not look alike or act alike Term Habitat: Definition The place where the population lives Term Distribution or range: Definition The area at which you find species Term Community (biological) Definition All the populations of different species that live and interact in a particular area. Term Definition