Science Question Preview (ID: 32738)


Chapter 20 Vocabulary. TEACHERS: click here for quick copy question ID numbers.

model of energy transfer showing how the food chains in a community are interconnected
a) food web
b) energy pyramid
c) photosynthesis
d) food chain

model showing how energy flows in an ecosystem
a) climate
b) bacteria
c) food chain
d) food web

process using chemical energy in matter to make food
a) photosynthesis
b) chemosynthesis
c) food chain
d) food web

to set free
a) abiotic factor
b) biotic factor
c) element
d) release

water that falls from the clouds to the Earth's surface
a) condensation
b) evaporation
c) precipitation
d) release

process that changes atmospheric nitrogen into compounds usable by living things
a) nitrogen fixation
b) chemosynthesis
c) photosynthesis
d) climate

process during which liquid water changes into water vapor
a) condensation
b) atmosphere
c) precipitation
d) evaporation

cannot be separated by chemical means
a) nitrogen fixation
b) element
c) food chain
d) food web

process during which water vapor changes into a liquid
a) evaporation
b) precipitation
c) condensation
d) photosynthesis

unicellular organisms without a membrane-bound nucleus
a) bacteria
b) element
c) atmosphere
d) release

living and nonliving things in a given area
a) bacteria
b) nitrogen fixation
c) food web
d) ecosystem

living thing in the ecosystem
a) climate
b) abiotic factor
c) biotic factor
d) element

average weather conditions in an area over time
a) condensation
b) food chain
c) energy pyramid
d) climate

nonliving thing in an ecosystem
a) abiotic factor
b) biotic factor
c) element
d) food web

layer of gases surrounding Earth
a) ecosystem
b) evaporation
c) atmosphere
d) photosynthesis

model showing the amount of energy available in each step of a food chain
a) abiotic factor
b) evaporation
c) energy pyramid
d) chemosynthesis

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) food chain
d) nitrogen fixation

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