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Test Description: Chapter 20 Vocabulary
Instructions: Answer all questions to get your test result.
1) nonliving thing in an ecosystem
A
biotic factor
B
food web
C
element
D
abiotic factor
2) layer of gases surrounding Earth
A
evaporation
B
atmosphere
C
ecosystem
D
photosynthesis
3) living thing in the ecosystem
A
biotic factor
B
abiotic factor
C
climate
D
element
4) average weather conditions in an area over time
A
food chain
B
energy pyramid
C
condensation
D
climate
5) living and nonliving things in a given area
A
nitrogen fixation
B
ecosystem
C
bacteria
D
food web
6) unicellular organisms without a membrane-bound nucleus
A
element
B
bacteria
C
release
D
atmosphere
7) process during which water vapor changes into a liquid
A
condensation
B
photosynthesis
C
evaporation
D
precipitation
8) cannot be separated by chemical means
A
element
B
food web
C
nitrogen fixation
D
food chain
9) process during which liquid water changes into water vapor
A
atmosphere
B
precipitation
C
condensation
D
evaporation
10) process that changes atmospheric nitrogen into compounds usable by living things
A
photosynthesis
B
climate
C
chemosynthesis
D
nitrogen fixation
11) water that falls from the clouds to the Earth's surface
A
release
B
precipitation
C
evaporation
D
condensation
12) to set free
A
biotic factor
B
release
C
element
D
abiotic factor
13) process using chemical energy in matter to make food
A
photosynthesis
B
food web
C
food chain
D
chemosynthesis
14) model showing how energy flows in an ecosystem
A
food web
B
bacteria
C
climate
D
food chain
15) model of energy transfer showing how the food chains in a community are interconnected
A
food web
B
food chain
C
energy pyramid
D
photosynthesis
16) model showing the amount of energy available in each step of a food chain
A
energy pyramid
B
evaporation
C
chemosynthesis
D
abiotic factor
17) series of chemical reactions that convert light energy, water, and carbon dioxide into the food-energy molecule glucose and give off oxygen
A
condensation
B
photosynthesis
C
nitrogen fixation
D
food chain
*select an answer for all questions
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