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Chapter 21

QuestionAnswer
ecology the study of organisms in their habitats
ecosystem the limited area in which living and nonliving things interact
abiotic environment all the nonliving factors in an ecosystem
biotic community all the living organisms in an ecosystem
habitat
niche what an organism does
artificial ecosystem manmade ecosystem
humus made of decaying plant and animals materials
water cycle the continuous movement of water from the atmosphere the earth and back to the atmosphere
evaporation the movement of water from the earth to the atmosphere
ecology the study of organisms in their habitats
ecosystem the limited area in which living and nonliving things interact
abiotic environment all the nonliving factors in an ecosystem
biotic community all the living organisms in an ecosystem
habitat
niche what an organism does
artificial ecosystem manmade ecosystem
humus made of decaying plant and animals materials
water cycle the continuous movement of water from the atmosphere the earth and back to the atmosphere
evaporation the movement of water from the earth to the atmosphere
precipitation the atmospheric water that falls back to earth
water table as the groundwater collects in the earth, it forms a reservoir
population all the individuals from the same species in am an ecosystem
producers organism manufactures their own food
consumer organism cannot manufacture their own food
oxygen cycles shows one way in which the physical environment and different populations of the biotic community work together in an ecosystem
nitrogen cycle designed processes for converting some of that nitrogen into usable compounds
rhythms the changes that happen on a regular basis in an ecosystem
circadian rhythm the changes in the meadow that were described in the opening paragraphs of this section are part of
nocturnal the species were entering a period of rest while the diurnal
diurnal species were entering a period of activity
seasonal rhythm the change in the ecosystem that occur with the change of season
dormant buds during the autumn the growing tips of these woody plants to form ______
hibernation the dormant state which permits certain animals to survive the winter
Created by: siah808