Concept explainers
Introduction:
In an ecosystem, the effects of abiotic factors are very important for the survival of species. Tolerance factor is the measurement of the range in which a particular organism can easily survive.
Answer to Problem 6A
Correct Answer:
Option (c) optimum range.
Explanation of Solution
Explanation/justification for the correct answer:
Option (c) optimum range. Zone D has the maximum survival rate, which means this is the range in which the factor being tested is suitable for the growth and the reproduction of the organism, that is optimum range.
Explanation for incorrect answer:
Option (a) zone of intolerance. The zone of intolerance is the zone, where no individual of the organism can survive. In the graph, the zone B has 0 survival, which means this range in not suitable for organism and hence, it is zone of intolerance.
Option (b) zone of physiological stress. Zone C represents the zone, where some organism can survive. This is the condition, in which some individuals that can manage the physiological stress of may survive.
Option (a) upper limit. The label A represents the upper limit, hence, it is an incorrect answer.
Chapter 3 Solutions
Biology Illinois Edition (Glencoe Science)
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