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7 SC ecosystems

gr.7 ecosystems

Abiotic the nonliving components of an ecosystem
Acid rain rain,snow or hail that contains acids formed from sulphur and nitrogen-containing pollutants in the atmosphere
Adaptation special strutures and behaviours that help an organism to succeed in its ecosystem
Biodegradable products made from things that were once living and that can be broken down by decomposers
Biological Amplification the process that results in increasing concentrations of a harmful chemical at each higher level of a food chain
Biome Bioshphere a collection of related ecosystem
Biotic living things that effect the environment
Carbon cycle a matter cycle for carbon as it used reused in respiration and photosynthesis
Carnivore a consumer that eats other animals
Chlorophyll a green substance found in plants; used to capture and store radiant energy from the sun
Community all of the organisms in an ecosystem
Consumer a organisms that cannot make its own food and must eat other organisms
Decompose to break down materals into smaller peices or molecules into smaller molecules, so they can be reused in an ecosystem
Decomposer an ecological niche; an organism that breaks down materails so they can be reused ina ecosystem
Ecological Niche the way of life or the role of the organism in an ecological
Ecological Pyramid is a graphical way to show the effects of loss of energy
Ecology the study of the relationships among living things and between living things and there environment
Ecosystem all of the relationships among living things in a community and their interactions with the abiotic factors in their environment
Food Chain an organizing device that show a feeding pathway, made up of several organisms
Food Web an organizing system made up of many intersecting food chains
Herbivore a consumer that eats only plants
Leaching a process in witch water seeps downward through soil or other materails, dissolving chemicals and carrying them into lower layers
Matter cycle a description of how matter is used and reused by living things
Nutrient a chemical that is essential for the growth of living things
Organism a single living thing
Pesticide chemicals designed to reduced the populations of unwanted organisms, both plants and animals
Photosynthesis the process plants used to make sugers out of carbon dioxide and water using radiant energy from the sun; releases oxygen
Population the number of organisms of the same species living in a community
Primary Succession succession that occurs in an area where ther was no community before; ends when a climax ecosystem is emblished
Prodcer an organism that can make its own food
Recycle means to reuse something
Respiration the process used by living things to break down sugers for the energy stored in them; uses oxyen and releases carbon dioxide and water
Secondary Succession succession that occurs after th partial or complete destruction of a community; the damaged community is replaced by another or by a seriess of others communites until a stable community is restablished
Succession a natural process in witch the dominant species in a ecosystem are gradually replace by others
Water Cycle the cycle that collects, purifies, and redistributes th earth's water; driven by energy form the sun
Created by: westdale