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ENV SCI Unit 2 Org.
ENV SCI Unit 2 Organization
| Term | Definition |
|---|---|
| ORGANISM | A SINGLE LIVING THING, SUCH AS A STARFISH, AN OAK TREE, OR AN EAGLE (SYNONYMOUS WITH INDIVIDUAL) |
| COMMUNITY | a group or association of populations of two or more different species occupying the same geographical area at the same time |
| INDIVIDUAL | A SINGLE LIVING THING, SUCH AS A STARFISH, AN OAK TREE, OR AN EAGLE (SYNONYMOUS WITH ORGANISM) |
| POPULATION | a group of organisms of the same species who inhabit the same particular geographical area |
| BIOME | is a distinct geographical region with specific climate, vegetation, and animal life. It consists of a biological community that has formed in response to its physical environment and regional climate. |
| BIOTIC | describe living or once living components of a community; for example organisms, such as animals and plants. |
| ABIOTIC | non-living chemical & physical parts of the environment that affect living organisms & the functioning of ecosystems . . . include physical conditions and non-living resources that affect living organisms in terms of growth, maintenance, and reproduction |
| BIOSPHERE | is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth |
| ENERGY TRANSFER | this occurs when energy is neither GAINED nor LOST, but changes from one form to another . . . or travels from one location to another |
| FOOD WEB | is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community |
| TROPHIC LEVELS | the position an organism occupies in a food web . . . it is the number of steps it is from the start of the chain. level 1 is primary producers (plants) . . . level 2 = consumer that eat plants (herbivores) . . . level 3 is secondary consumers, etc. |
| BIOMASS | in the context of ecology it means living organisms |
| ECOSYSTEM | is a system that environments and their organisms form through their interaction.[2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows |
| ENERGY | this is the ability to do work . . . it must be conserved - meaning it cannot be created and cannot be destroyed . . . it can change forms and be transferred. |
| FOOD CHAIN/WEB | the natural interconnection of food chains & graphical representation of what-eats-what in an ecological community. All life forms are either autotrophs or heterotrophs, based on their trophic levels - the position that they occupy in the food web. |
| PRODUCER | (autotrophs) are typically plants or algae. Plants and algae do not usually eat other organisms, but pull nutrients from the soil or the ocean and manufacture their own food using photosynthesis |
| CONSUMER | is a living creature that eats organisms from a different population (heterotroph) |
| HERBIVORE | is an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet |
| CARNIVORE | or meat-eater, is an animal or plant whose food and energy requirements are met by the consumption of animal tissues (mainly muscle, fat and other soft tissues) whether through hunting or scavenging |
| OMNIVORE | an animal that regularly consumes significant quantities of both plant and animal matter |
| SCIENCE | a testable body of knowledge |
Created by:
kristin.miller
Popular Ecology sets