Consider the Case of Some Large Salamanders That Live a Long

question 16

Multiple Choice

Consider the case of some large salamanders that live a long time,produce fewer young,and do not metamorphose into adults without gills,but maintain the juvenile body form as reproductive adults (e.g. ,hellbender,mudpuppy,sirens) .In contrast,"normal" salamanders undergo metamorphosis rather rapidly and have short lives and many young.In what habitat would you expect the large salamanders that retain the juvenile body form to live?

• A)In permanent ponds or streams providing a stable environment
• B)In slow-moving streams and rivers with stagnant water
• C)In temporary ponds with an unstable environment
• D)As salamanders,both types would have exactly the same habitat and evolutionary pressures
• E)None of the choices is correct

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