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30 Cards in this Set

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study of interactions between organisms and the living and nonliving components of their enviorment .
Ecology
Key theme found throughout Ecology . (interact with organsims in their surroundings and w/ non living portions of their enviorment .
Interdependence
describe components of ecological system .
Ecological Model
broadest most inclusive level of organization , only involves thin layer of Eart and its atmosphere that supports life .
Biosphere
Includes all of the organisms and the non living enviornment found in a particular place.
ecosystem
All interacting organisms living in an area .
Community
All members of a species that live in one place at one time .
Population
The place where an organism lives ?
Habitat
Living components of the enviornment ?
Biotic factors
Non Living factors
Abiotic Factors
A graph performance versus values of an enviornmental variable , such as temp . is what ?
Tolerance Curve
Organisms adjust their tolerance to abiotic factors through what process ?
Acclimation
Organisms that do not regulate their internal conditions ; they change as their external enviornment changes .
Conformers
Organisms that use energy to control some of their internal conditions .
Regulators
A longer term strategy is to enter a state of reduced activity .
Dormancy
Another strategy is to move to a more favorable habitat .
Migration
specific role , or way of life , of a species within its enviornment is what ?
Niche
species with broad niches ; they can tolerate a range of conditions and use a variety of resources .
Generalists
species that have narrow niches ?
Specialists
they capture energy to make organic molecules ?
Producers
use energy stored in inorganic molecules to produce carbohydrates ?
Chemosynthesis
The rate at which producers in an ecosystem capture the energy of sunlight by producing organic compounds ?
Gross Primary Productivity
Organic material that has been produced in an ecosystem as what ?
Biomass
Measure the rate at which biomass accumalates ; ?
Net Primary Productivity
Get energy by eating other organisms and obtain energy by consuming organic molecules . Can be grouped by the certian food they eat . Also ( Heterotrophs r what ? )
Consumers
Eat producers . Also they eat plants .
Herbivore
Organisms that eat animals ? Eat other consumers .
Carnivores
Eat both proucers and consumers . Both plants and animals ?
Omnivore
consumers that feed on the garbage of an ecosystem ?
Detritivores
Break down complex molecules into simpler molecules ?
Decomposers