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science 24-3

Producers organisms that use an outside energy source like the sun to make every rich molecules - green plants
Consumers organism can't make it's own energy rich molecules - gets energy by eating other organisms - lions and tigers
Decomposers organisms who break down once living matter - millipedes
Niche the role an organism has in it's environment - food, shelter, find its mate, care for young, avoids danger
Habitat the place in which an organism lives
Ecosystem all of the organisms that live in an area and the non-living features in their environment
Community all of the populations of all the species living in an area at the same time
Population all of the members of the one species that live in an area at one time - population of the USA
Biotic Potential the highest rate of reproduction under idea circumstances
Growth Limits when growth of a population is limited by resources individuals of that species compete for - shelter, food territory, and water
Competition examples of things organisms compete for - food, shelter, territory, and water
Limiting Factors anything that restricts the number of individuals in a population - same as growth limits plus predators and disease because this includes Growth Factors plus death factors
Carrying Capacity (remember the analogy with an elevator's capacity) - the largest number individuals of one species that an ecosystem can support over time
Predator and Prey one species eats member of another species for food. when a creature hunts for creature who belongs to another species and both creatures can move. when the food that is being eaten can't move (grass, mushrooms), it is merely another feeding relationship
Symbiotic Relationships "scorecard relationships" in which both members are alive
Commensalism a relationship in which the members of one species benefits and the other species is unaffected
Mutualism relationships in which member of both species benefit
Parasitism a relationship in which the member of one species benefits and the member of the other species is harmed
Neutralism no effect on either species
Created by: eheebe11