Ch. 18 Flashcards
What does biotic mean?
Describes living factors in the enviroment.
What is Ecology?
The study of interactions of living organisms with one another and with their enviroment.
What does abiotic mean?
Describes the non living part of the environment,including water, rocks, light, and temperature.
What is a population?
A group of organisms of the same species that live in a specific geographical area.
What is a community?
All the populations of species that live in the same habitat and interact with each other.
What is an ecosystem?
A community of organisms and their abiotic enviroment.
What is a biosphere?
The part of life where earth exists.
What is a herbivore?
An organism that eats only plants.
What is a carnivore?
An organism that eats animals.
What is an omnivore?
An organism that eats both plants and animals.
What is a food chain?
The pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms.
What is a food web.
A diagram that shows the feeding relationships between organisms in an ecosystem.
What is an energy pyramid.
A triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystems food chain.
What is a carrying capacity?
The largest population that an environment can support at any given time.
What is prey?
An organism that is killed and eaten by another organism.
