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Movement in Water 
 Reference chapter

Question 3
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The drawings show the arrangement of the bones in the forelimbs of two mammals, the dolphin and the bat.

Forelimb of a bat Forelimb of a dolphin

 

Questions
(a) How is the dolphin's limb different from a human arm?
(b) What is the limb of a dolphin used for?
(c) How is the limb of the bat different from a human arm?
(d) How do you think that the arrangement of bones in the wing of a bat help it to fly?
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