Question 13
Transport in AnimalsWhich of the following explains the need for transport system in large mammals?
- A.The area to volume ratio in large animals is high
- B.The area to volume ratio diminishes with large size
- C.Diffusion as an adquate means of transport is lacking
- D.Large animal have internal fluid which contains different types of cells
- E.Large animals have four-chambered heart
Show the answer and explanation
Answer: B (The area to volume ratio diminishes with large size)
Explanation
Big animals have a small surface area compared with their volume, so diffusion alone is too slow; they need a transport system.