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How Do Environmental Changes Affect Organisms 2? Pages 263-267

Teacher: William Etheridge
Across
Areas _____ by forest fire undergo secondary succession.
Large areas of land are _____ with ice for thousands of years.
Many things can happen to change environments ____ as well.
_____ eruptions can quickly change the environment.
It is unclear how warming might affect the _____ as a whole.
Eventually a stable _____ community re-establishes itself.
_____ succession occurs more quickly than primary succession.
All environments change over _____.
Without water, plants and animals will _____.
_____ is now in a warming cycle.
Throughout the Earth's _____, the average temperature has gone up and down many times.
When _____ is plentiful, succession can happen more quickly.
Down
During _____ climate cycles, ice melts and uncovers land.
_____ changes affect organisms.
As some areas become warmer, the _____ that inhabit those areas will move, adapt to the change, or disappear.
_____ are common pioneers.
It can take _____ of years for a stable community to establish itself.
Even mature, _____ communities continue to change.
During the last ice age, ice nearly 4 km thick covered much of _____ America.
Ecosystems change all the time, but the changes are often so _____ that they are hard to notice.