• This question was well-attempted by the candidates. In 4(a), majority of the candidates could identify specimens I (Piece of liver); J (piece of ruminant skin) and K (piece of rumen/part of ruminant stomach).
• In 4(b), although most of the candidates were able to state the functions of specimens I and J to the animal they could not state functions of specimen K to the animal. Similarly, in 4( c), majority of the candidates could not name the process involved in preserving fresh quantity of specimen L (Milk).

The expected answers include:
Functions of Specimen K (Rumen)

• Mechanical breakdown of coarse fibrous feeds into smaller particles
• Involved in the digestion of fibrous feed by ruminant
• Vitamin B synthesis
• Absorption of Volatile Fatty Acids
• Fermentation of carbohydrate substances into simpler compounds
• Storage of hurriedly ingested feed for further digestion later (Rumination
•  Low-quality proteins are converted to higher quality proteins inside the rumen
•  Propulsion of ingested feed into other stomach compartments
• Harbours millions of microbes which aid fibre digestion