Explanation

Explanation

Explanation

Explanation

• The liver is an accessory organ of the digestive system. Food does not pass through it.
• The liver produces bile, which helps emulsify fats into smaller droplets for easier digestion.
• The gallbladder stores and concentrates bile, releasing it into the small intestine when needed.

Last verified on 25-10-2026

Explanation

• Malaria is caused by the parasite Plasmodium.
• It is transmitted to humans through the bite of an infected female Anopheles mosquito.
• Malaria is a parasitic disease.
• It mainly affects the liver and red blood cells.
• Common symptoms include fever, chills, headache, and sweating.

Last verified on 11-07-2026

Explanation

• Veal is the meat from young calves.
• It can come from calves of either sex and any breed.

Last verified on 03-07-2026

Explanation

• Herpetology is the branch of zoology that studies reptiles and amphibians.
• Reptiles include: snakes, lizards, crocodiles, turtles.
• Amphibians include: frogs, toads, salamanders.
• The word comes from Greek “herpeton” meaning creeping animal.

Last verified on 09-06-2026

Explanation

• Syncytial theory explains the origin of multicellular animals (metazoa).
• It suggests that metazoans evolved from a multinucleated single cell (syncytium).
• Cell membranes later formed around nuclei to create separate cells.
• It explains early evolution of multicellular organisms.

Last verified on 04-06-2026

Explanation

• In dragonfly, the circulatory system does not transport gases.
• Gas exchange occurs through a tracheal system.
• Air directly reaches tissues through spiracles and tracheae.
• Blood is not involved in oxygen transport.

Last verified on 04-06-2026

Explanation

• Bronchioles are the narrowest and most numerous air passages in lungs.
• They branch from bronchi and lead to alveoli.
• They help in controlling airflow in the lungs.
• They are an important part of the respiratory system.

Last verified on 04-06-2026