Among these choices, the most energetically efficient locomotion per unit mass is likely to be which of the following?

Question

Quizplus · Accepted Answer

Swimming by a 100-kilogram tuna (bony fish) is likely the most energetically efficient form of locomotion per unit mass among the options. Larger aquatic animals, like the tuna, benefit from the properties of water that reduce friction and allow for efficient movement, and their large mass helps in maintaining momentum. Additionally, the streamlined body shape of tuna minimizes drag, making their swimming highly efficient compared to the energy costs of locomotion in air or on land for smaller or differently shaped animals.

Among These Choices, the Most Energetically Efficient Locomotion Per Unit