Many sea mammals , fish, and birds have the same body form, i.e. whales, marlin, and penguins. Which of the following is the best explanation for this observation? This is the only shape that will allow them to maintain a constant body temperature in water. Their shapes are the result of convergent evolution, which reduces drag while swimming. All of the organisms needed to develop similar body shapes so they could swim. All of their bodies have been compressed since birth by intensive underwater pressures.

Many sea mammals , fish, and birds have the same body form, i.e. whales, marlin, and penguins. Which of the following is the best explanation for this observation? This is the only shape that will allow them to maintain a constant body temperature in water. Their shapes are the result of convergent evolution, which reduces drag while swimming. All of the organisms needed to develop similar body shapes so they could swim. All of their bodies have been compressed since birth by intensive underwater pressures.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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18)
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Consider an ectotherm and an endotherm of equal body mass. Which of the following would you expect to be true? -both animals require the same amount of energy per unit mass -the ectotherm requires more daily calories from food than the endotherm -the endotherm requires less energy per unit mass but more total energy than the ectotherm -the ectotherm requires less energy per unit mass but more total energy than the endotherm -the ectotherm could survive a longer period without food relative to the endotherm
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