Question

read these two excerpts. frank fish thought the bumps on the flipper of a whale sculpture were a mistake. instead, he discovered that the a humpback whale flippers could help him figure out how to design more efficient cars. b bumps on a humpback whales flippers are useful for slowing the whale down. c museum scientists created models of humpback whales based on inaccurate information. d bumps on a humpback whales flippers could help him design more efficient wind turbines. in the ocean, tubercles force water to flow so that it is guided along the surface of the whales flippers. this means the whale can position its flippers at a sharper angle and get more lift - and therefore more energy - as the water flows over them. of course, the design has the same effect on airflow. so fish set up a toronto - based company called whalepower, which is now testing wind turbine blades designed with those tubercle - like bumps.

Explanation:

The text mentions that Frank Fish set up a company called WhalePower to test wind turbine blades designed with tubercle - like bumps inspired by humpback whale flippers. This indicates that the bumps on humpback whale flippers could help in designing more efficient wind turbines.

Answer:

D. bumps on a humpback whale's flippers could help him design more efficient wind turbines.