Question

A complete digestive tract consists of an oral and an anal opening.
A. True
B. False

Answer 1

Hint: A digestive tract is a group of tissues or organs considered to break down food. Some animals, like humans, have a complete digestive tract, signifies that it has a clear beginning and a separate end. Some, less complex species have only one opening, like sea sponges or jellyfish.

Complete answer:
The food canal starts with an anterior opening in humans, called the mouth, and it opens out later into another opening, the anus. Such a feeding channel is called full. There is only one opening in certain species like coelenterates; such a food canal is considered incomplete. Humans have a full digestive system, like other more advanced species. It starts in the mouth, where food is ground and carbohydrate digestion starts, such as those used in bread or candy. The meal is also carried back to the intestine through the oesophagus, and is an expert on the breakdown of carbohydrates and certain nutrition. This is achieved using small proteins called enzymes that enhance the chemical reaction of food breakdown. It also has plenty of acids, which melts food into liquid.

Hence, the correct answer is option (A).

Note: As each organ is separate, to the best of their ability, they should do their work. Since digestion, the large intestine receives water from the tiny intestine. Again, the structure of the large intestine and the environment are distinct, so it can do a different task. The rectum to collect waste and the anus to remove waste is inside the large intestine.