1
2
3
4
5
100
abiotic factor
What is a nonliving aspect of the environment?
100
biomass
What is the total mass of an organism at trophic level?
100
biotic factor
What is the living aspect of the environment?
100
carnivore
What is something that consumes animals?
100
chemoautotroph
What use energy from chemical compounds to make food by chemosynthesis?
200
competitive exclusion principle
Two different species cannot occupy the same niche at the same tie for very long.
200
decomposer
What breaks down remains and other waste?
200
detritivore
What consume detritus?
200
detritus
What is substance composed of dead leaves, other plant remains, and animal feces that collects on the soil or at the bottom of a body of water?
200
ecology
What is branch of biology that is the study of how living things interact with each other and with their environment?
300
food chain
What is diagram that represents a single pathway through which energy and matter flow through an ecosystem?
300
food web
What is diagram that represents multiple intersecting pathways through which energy and matter flow through an ecosystem?
300
habitat
What is physical environment in which a species lives and to which it has become adapted?
300
herbivore
What is consumer that eats producers such as plants or algae?
300
niche
What is role of a species in its ecosystem that includes all the ways the species interacts with the biotic and abiotic factors of the ecosystem?
400
omnivore
What is consumer that eats both plants and animals?
400
photoautotroph
What is producer that uses energy from sunlight to make food by photosynthesis?
400
saprotoph
decomposer such as a fungus or protozoan that feeds on any remaining organic matter that is left after other decomposers do their work?
400
scavenger
What is decomposer that consumers the soft tissues of dead animals?
400
trophic level
What is feeding position in a food chain or food web, such as producer, primary consumer, or secondary consumer?
500
nitrogen cycle
What is interconnected pathways through which nitrogen is recycled through the biotic and abiotic components of the biosphere?
500
nitrogen fixation
What is process of changing nitrogen gas to nitrates that is carried out by nitrogen-fixing bacteria in the soil or in the roots of legumes?
500
sublimation
What is process in which ice and snow change directly to water vapor?
500
transpiration
What is process in which plants give off water vapor from photosynthesis through tiny pores, called stomata, in their leaves?
500
water cycle
What is interconnected pathways through which water is recycled through the biotic and abiotic components of the biosphere?
M
e
n
u