Completion
Complete each
statement.
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1.
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________________ succession begins in a place without any soil, such as an old,
dormant volcano lava flow.
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2.
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The first species to colonize a lifeless surface in a situation of primary
succession is called a ___________ species.
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3.
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The gradual replacement of one plant community by another through natural
processes over time is known as _____________ succession.
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4.
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One of the first species that appears on barren rock are _____________, which,
when they die, decompose and add small amounts of organic matter to teh rock to help make
soil.
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5.
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The first, simple plants that appear in the new soil of a primary succession
situation are mosses and ___________.
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6.
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________________ succession begins in a place that already has soil and was once
the home of living organisms.
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7.
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A __________ __________ is a stable group of plants and animals that is
the end result of the succession process.
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