Ruminant

The video tutorial explores various digestive systems, focusing on the ruminant system found in hoofed animals like cows. It explains the evolution of digestive tracts from simple gastrovascular cavities to complex alimentary canals. The ruminant system, with its four stomach compartments, allows animals to digest roughage efficiently. The video also covers unicellular digestion through phagocytosis and the pseudoruminant system in some vertebrates.

What process do unicellular organisms use to ingest nutrients?

• Phagocytosis

• Fermentation

• Photosynthesis

• Osmosis

Which type of digestive tract evolved from the gastrovascular cavity?

• Monogastric system

• Pseudoruminant system

• Alimentary canal

• Ruminant system

What is the main component of roughage that pseudoruminants digest?

• Glucose

• Cellulose

• Protein

• Starch

Which of the following is NOT a type of vertebrate digestive system?

• Avian

• Monogastric

• Gastrovascular

• Ruminant

What is the first compartment of a cow's stomach called?

• Reticulum

• Omasum

• Rumen

• Abomasum

What is the function of the omasum in the ruminant digestive system?

• Absorbs water and salts

• Traps foreign objects

• Stores partially digested food

• Mixes food with enzymes

How do ruminant animals make use of indigestible foods?

• By absorbing them directly

• By fermenting them in the stomach

• By regurgitating and rechewing them

• By storing them in food vacuoles