Why do most fish and marine mammals have the same torpedo-like, streamlined shape?
a) A streamlined shape presents a greater surface area-to-volume ratio, which allows easier regulation of internal heat.
b) If you are going to move through a substance, like water, it is necessary to have a head and eyes at one end and a tail at the other.
c) Streamlining looks better to the opposite sex, so it leads to greater reproduction.
d) The streamlined shape minimizes energy expended to move through the water.
e) They can swim faster with streamlined shapes.
D
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