Answer:

1. Ruminant Stomach:

   1. Four-chambered stomach, including the rumen, reticulum, omasum, and abomasum.
   2. Large fermentation chamber that breaks down plant fibers with the help of microorganisms.
   3. Microorganisms produce volatile fatty acids and gases, such as methane, as byproducts.
   4. Cud is regurgitated and chewed again to further break down fibers.
   5. Limited digestive enzymes secreted in the stomach, with most digestion occurring in the small intestine.
   6. Adapted for herbivorous diet.

   Human Stomach:

   1. Single-chambered stomach with a large muscular sac.
   2. Limited fermentation capacity.
   3. Secretes hydrochloric acid and digestive enzymes to break down food.
   4. No cud regurgitation or additional chewing.
   5. Most digestion occurs in the stomach, with additional breakdown in the small intestine.
   6. Adapted for omnivorous diet.