Digestive System (I) | SS2 Biology

Overview

Describe with appropriate illustrations of different types of alimentary tracts. Explain the feeding mechanism of some animals. Explain how some insectivorous plants feed.

Lesson details

Class: SS2
Subject: Biology
Theme: The Organism At Work
Duration: 30:12

What you'll learn

Types of alimentary tracts
Description and functions of parts of the alimentary canal.
Modifications of parts to effect their digestive functions.
Feeding habits: categories and mechanisms.
Feeding in protozoa, hydra and mammals.
Modifications in the feeding habits of:
(i) Filter feeders.
(ii) Fluid feeders.
(iii) Insects feeders.
(iv) Parasitic and saprophytic feeders.

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