Similar Fusiform Body Shapes Are Seen in Sharks, Penguins, and Aquatic

question 54

Multiple Choice

Similar fusiform body shapes are seen in sharks, penguins, and aquatic mammals because

• A)natural selection has no limits when different organisms face the same challenge.
• B)respiration through gills is enhanced by having a fusiform shape.
• C)the laws of physics constrain the shapes that are possible for aquatic animals that swim very fast.
• D)the fusiform shape is coded by the same gene in all three types of animals.
• E)all three types evolved from ancestral forms that fly in the air.

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