Chapter 2 Review: Question Preview (ID: 7128)

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What is gradual change in an environment over time?
a) ecological changes
b) unnatural
c) natural
d) succession

The development of a community on bare, exposed rock is...
a) primary succession
b) ecological advancement
c) tertiary succession
d) secondary succession

The recovery of the area around Mt. St.Helens is an example of
a) primary succession
b) environmental changes
c) miracle
d) secondary succession

Pioneer species on bare rock are commonly
a) mosses
b) lichens
c) ferns
d) pine trees

a stable community within an ecosystem
a) pioneer community
b) climax community

the process of burning fuel, such as oil and coal, is
a) decomposition
b) combustion
c) respiration
d) photosynthesis

During nitrogen fixation, nitrogen gas is converted to a form that _____ can use
a) animals
b) plants
c) fungi
d) scavengers

The breakdown of dead materials into carbon dioxide and water is called
a) photosynthesis
b) respiration
c) decomposition
d) evaporation

water changes to a liquid to a vapor during
a) precipitation
b) decomposition
c) condensation
d) evaporation

all biological molecules contain
a) oxygen
b) carbon
c) carbon dioxide
d) carbon monoxide

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