Science quiz

Ecology

the study of interactions between organisms and their environment.

Biotic

all of the organisms that live together and interact with one another

abiotic

all of the physical factors such as water, soil, light, temperature

population

a group of individuals of the same species that live together in the same area at the same time.

community

consists of all of the populations of different species that live and interact in an area

ecosystem

a community of organisms and its abiotic environment.

biosphere

the part of earth where life exists

herbivore

a consumer that eats plants

carnivore

a consumer that eats animals

omnivore

eat a variety of organisms both plants and animals

scavenger

animals that feed on the bodies of dead animals

food chain

represents how the energy in food molecules flow from one organism to the next

food web

Many energy pathways are possible

energy pyramid

the loss of energy at each level of the food chain, has a large base becomes smaller at the top

habitat

the environment in which an organism lives

niche

an organisms way of life

carrying capacity

the largest population a environment can support over a long period of time

prey

The organism that is eaten

predator

the organism that eats the prey

symbiosis

a close long term association between two or more species

mutualsim

A symbiotic relationship when both organisms benefit

Commensalism

A symbiotic relationship when one organism benefits and the other is unaffected

parasitsm

A symbiotic relationship when one organism benefits and the other is harmed

coevolution

a long term change that takes place in two species because of their close interactions with one another