Describe the digestive system of a ruminant, including its parts and the role of different nutrients in animal feed.

Here are the answers to Question 1 from SECTION A. QUESTION 1: a) i) One type of feed given to each animal: • A (Cow): Grass • B (Rabbit): Hay • C (Chicken): Grains ii) One nutrient from each type of feed mentioned in (i): • From Grass (for Cow): Carbohydrates • From Hay (for Rabbit): Fiber • From Grains (for Chicken): Proteins iii) One function each of the nutrient named in (ii): • Carbohydrates: Provide energy for metabolic activities. • Fiber: Aids in digestion and maintains gut health. • Proteins: Essential for growth, repair of tissues, and enzyme production. iv) The animal in Fig. 1(a) that can be classified as a ruminant is A (Cow). b) i) The parts labelled I, II, III, IV, and V: • I: Larynx (Voice box) • II: Trachea (Windpipe) • III: Bronchus (Main airway into the lung) • IV: Bronchioles (Smaller airways within the lungs) • V: Alveoli (Air sacs) ii) One function each of the parts labelled II, III, and V: • II (Trachea): Provides a clear airway for air to enter and exit the lungs. • III (Bronchus): Divides the air from the trachea into the left and right lungs. • V (Alveoli): The primary site for gas exchange between the air and the blood. iii) The most important gas during the process of respiration that is: • () used by the body: Oxygen • () brought out from the body: Carbon dioxide What's next?