How does the structure of the digestive tract, beginning at the mouth and ending at the anus, facilitate efficient digestion in both humans and frogs?

Question

a
It allows for a one-way flow of food, preventing waste from being reabsorbed and ensuring complete digestion and elimination.
b
It enables food to be digested only chemically, without the need for mechanical breakdown.
c
This structure is unique to humans, while frogs have a different digestive tract arrangement.

Answer 1

The correct answer is:

a It allows for a one-way flow of food, preventing waste from being reabsorbed and ensuring complete digestion and elimination.

Both humans and frogs have a digestive tract that facilitates efficient digestion through a one-way flow, starting from the mouth, moving through various organs (such as the stomach and intestines), and ending at the anus. This structure ensures that food moves in a controlled manner, allowing for both mechanical and chemical digestion at different stages, and preventing the reabsorption of waste. Option b is incorrect because digestion in both species involves both mechanical and chemical processes. Option c is also incorrect, as the basic structure and function of the digestive tract are similar between humans and frogs, though there may be anatomical differences.