Biology MCQs with answers Page - 56

The primary function of the Pineal gland is production of melatonin, which helps maintain circadian rhythm and regulate reproductive hormones.

The primary function of the small intestine is the absorption of nutrients and minerals from food. The small intestine has three distinct regions the duodenum, jejunum and ileum. The duodenum receives bile and pancreatic juice through the pancreatic duct. The jejunum is the midsection of the small intestine, connecting the duodenum to the ileum.

All of the above given statements are correct Elephantiasis refers to a parasitic infection that causes extreme swelling in the arms and legs. The disease is caused by the filarial worm, which is transmitted from human to human via the female mosquito when it takes a blood meal. Chikungunya is a rare form of viral infection caused by an alpha virus that is spread by the mosquitoes of genus Aedes i.e. Aedes Aegypti, Aedes Albopicticus (Tiger mosquito). A type of bacteria called Corynebacterium diphtheria causes diphtheria. Malaria is a mosquito-borne infectious disease affecting humans and other animals caused by parasitic protozoans belonging to the Plasmodium type. It is transmitted to people through the bites of infected female Anopheles mosquitoes.