The respiratory pigment in human blood that transports oxygen is: MCQ with Answer and Explanation

Explanation:
Beriberi is a disease affecting the nervous and cardiovascular systems due to lack of thiamine (B₁). Scurvy is vitamin C deficiency, pellagra is niacin (B₃), rickets is vitamin D. Thiamine is a coenzyme in carbohydrate metabolism.

Explanation:
Lymphatic filariasis, commonly known as elephantiasis, is a parasitic disease caused by nematode worms, primarily Wuchereria bancrofti. The infective larvae (microfilariae) are transmitted to humans through the bite of an infected female Culex mosquito (primarily Culex pipiens fatigans). The adult worms lodge in the lymphatic vessels, causing severe inflammation, blockage, and the characteristic massive swelling (elephantiasis) of the limbs and genitals. Anopheles transmits malaria, Aedes transmits dengue.

Explanation:
Theophrastus (c. 371–287 BCE), a student of Aristotle, is called the Father of Botany for his works 'Historia Plantarum' and 'De Causis Plantarum', in which he classified and described hundreds of plants. Aristotle is the Father of Zoology. Linnaeus developed binomial nomenclature. Darwin proposed natural selection. Theophrastus laid the early foundations of plant science.