Based on the provided figures, answer the following: a) Identify the food source for A (Cow), B (Rabbit), and C (Chicken). State the primary nutrient derived from each food source and its function. b)

Here are the answers to the questions based on the figures:

a)

• (i)
  • A (Cow): Grass
  • B (Rabbit): Hay
  • C (Chicken): Grains
• (ii)
  • From grass (for cow): Carbohydrates
  • From hay (for rabbit): Fiber
  • From grains (for chicken): Proteins
• (iii)
  • Carbohydrates: Provide energy for metabolic activities.
  • Fiber: Aids in digestion and maintains gut health.
  • Proteins: Essential for growth and repair of tissues.
• (iv)
  • The animal that can be classified as a ruminant is A (Cow).

b)

• (i)
  • I: Trachea
  • II: Bronchus
  • III: Lung
  • IV: Bronchiole
  • V: Alveoli
• (ii)
  • II (Bronchus): Carries air from the trachea into the lungs.
  • III (Lung): The primary organ for gas exchange in the body.
  • V (Alveoli): The site where oxygen diffuses into the blood and carbon dioxide diffuses out.
• (iii)
  • (a) Used by the body: Oxygen
  • (b) Brought out from the body: Carbon dioxide