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In the Section "Investigating Life: Size Matters in Fishing Frenzy",what

Question 45
Multiple Choice

In the section "Investigating Life: Size Matters in Fishing Frenzy",what did the researchers conclude from the figure? A)Harvesting larger fish led to an increase in average size over time. B)Harvesting fish in a slot limit led to a decrease in average size over time. C)Harvesting fish in a slot limit led to an increase in average size over time. D)Harvesting fish of the three treatments created different selective pressures and changed the genetic structure of the populations. E)Harvesting larger fish led to a decrease in average size over timE.

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Q 46
In the section "Investigating Life: Size Matters in Fishing Frenzy",the heritability of body size was 20% regulated by the environment (and 80% controlled by genes)in Atlantic silversides.What would happen to the figure if heritability was 80% regulated by the environment (and 20% regulated by genes)? A)The changes in average size would occur more rapidly. B)The changes in average size would occur more slowly. C)No changes in average size would occur. D)The fish would never get as large under the same environmental conditions. E)The fish would avoid predation.
Q 47
In the section "Investigating Life: Size Matters in Fishing Frenzy",larger fish represent ____ in an ecosystem. A)producers B)primary consumers C)detritivores D)herbivores E)keystone predators
Q 48
In the section "Investigating Life: Size Matters in Fishing Frenzy",a fish that eats other fish that in turn eat algae is a A)secondary consumer. B)producer. C)primary consumer. D)detritovore. E)herbivorE.
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