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The biosphere



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1 a collection of all the organisms that live in a particular place together with their nonliving, or physical, environment
3 eats only animals
10 all of the chemical substances that an organism needs to sustain life
12 the rate at which organic matter is created by producers
13 a group of organisms so similar to one another that they can breed and produe fertile offsprings
15 a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web
16 the process by which organisms use chemical energy to produce carbohydrates
18 a process by which soil bacteria is converted into nitrogen gas
19 the process by which nitrogen gas is converted into ammonia
20 a networj of complex interactions described as
21 when a ecosystem is limited by a singl nutrient that is scares or cycles very slowly
24 a process by which autotrophs harness solar energy
28 feed on plant and animal remains and other dead matter
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2 the process of when water enters the atmosphere by evaporating from leaves of plants
4 contains the combined portions of the planet in which all life exists
5 organisms that capture energy from sunlight or chemiclas and use it to produce its own food from inorhanic compounds
6 assemblage of different populations that live together in a defined area
7 a series of steps in which organisms tranfer energy by eating and being eaten
8 the scientific study of interactions among organisms
9 breaks down organic matter
11 when forms of matter are passed from one organism to another and from one part of the biosphere to another
14 a group of ecosystems that have the same climate and similar dominant communities
17 the result of runoff from heavy fertilized fields
22 the process by which water changes form liquid to an atmospheric gas
23 each step in a food chain or food web is
24 a group of individuals the belong to the same species and live in the same area
25 another name for an autotroph
26 the total amount of living tissue within a given trophic level
27 obtains energy by eating only plants
29 eats both plants and animals
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