Which of the following is a true statement about body size and physiology?
A) The amount of food and oxygen an animal requires and the amount of heat and waste it produces are inversely proportional to its mass.
B) The rate at which an animal uses nutrients and produces waste products is independent of its volume.
C) Small and large animals face different physiological challenges because an animal's body mass increases cubically while its surface area increases as a squared function.
D) The wastes produced by an animal double as its volume doubles and triple as its surface area triples.

Question

Quizplus · Accepted Answer

This statement correctly describes the challenges faced by animals of different sizes due to the relationship between body mass (which increases cubically) and surface area (which increases as a squared function). This can affect the exchange of gases, nutrients and waste products between an animal's body and the environment. Options A, B, and D are incorrect as they do not accurately describe the relationship between body size and physiology.

Which of the Following Is a True Statement About Body