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Ecology Quiz

NYS Living Environment AIS

Competition occurs when animals fight for resources because the resources are limited
Abiotic nonliving factors in an ecosystem
Biotic living factors in an ecosystem
Biodiversity the variety of living things in an area. The more variety, the better
Carnivore eats meat only
Herbivore eats plants only
Omnivore eats plants and meat
Carrying capacity the maximum number of organisms that a habit can support due to limits in food, shelter and other resources
Producer an organism that makes its own food (energy) through photosynthesis
Consumer cannot make its own food, must eat to get energy
Habitat where an organism lives
Niche an organism’s JOB in its environment
Food web Complex (goes in all directions) representation of items with arrows to show transfer of energy. Starts with the sun
Energy pyramid vertical stack of organisms in a food chain. Producers are on the bottom.
Ecological Succession gradual change in an area, as organisms grow after an event such as a fire. Starts with small plants and can eventually end with a complex forest.
Heterotroph organism that cannot make its own food; a consumer
Autotroph an organism that produces its own food; the source of energy for all other living things on earth
Parasite an organism that survives by living and feeding on other organisms
Predator an animal that actively hunts and kills other animals (prey) for food
Scavenger a carnivore that feeds on the bodies of dead organisms
Limiting factors any factor in the environment that limits the size of a population
Carrying capacity the largest population of any single species that an area can support
Host an organism that is home to a parasite
Created by: etucci