Question

Case: Neena was writing a project report on modes of nutrition in different organisms. Heterotrophic organisms display three modes of nutrition i.e., saprophytic, parasitic and holozoic. In the holozoic mode of nutrition, a study on the digestive system of different animals showed that the length of the food pipe or oesophagus in different animals are different. The study showed that herbivores have a longer small intestine as compared to carnivores. Help Neena to complete her report by answering the following question:

Why do herbivores have a longer small intestine than carnivores?

• A. Herbivores consume more food than carnivores.
• B. Herbivores consume simple sugar that is difficult to digest.
• C. Herbivores consume grass that is rich in cellulose.
• D. Carnivores consume meat that is difficult to digest.

Answer 1

The correct option is C Herbivores consume grass that is rich in cellulose.

Herbivores eat plant and grass-based food that is rich in cellulose. Cellulose takes time to digest so these animals have a long small intestine. Carnivores consume meat that is easier to digest so these animals have a short small intestine.