Glencoe Biology

Section 1: Community Ecology

Self-Check Quizzes-English

1
A biotic or abiotic factor that restricts the numbers of organisms in an ecosystem is called a (an) ____.
A)tolerating factor
B)limiting factor
C)primary succession
D)end point
2
One community replacing another as a result of changing abiotic and biotic factors is called ____.
A)ecological succession
B)temperate change
C)end point
D)tropical succession
3
Which statement is true based on this picture?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078695104/383927/ah.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (19.0K)</a>
A)Temperature does not affect the physiology of steelhead.
B)Colder water is always better for steelhead survival.
C)Steelhead cannot tolerate temperature above or below a certain limit.
D)There is no upper limit for steelhead temperature tolerance.
4
The first organisms to appear during ecological succession are called ____.
A)succession plants
B)pioneer species
C)end point species
D)primary organisms
5
What is a climax community?
A)stable community with little change in species numbers
B)community consisting of pioneer organisms
C)community left behind immediately after a forest fire
D)community with no biotic factors
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