The scientist who discovered the vaccine for smallpox was: MCQ with Answer and Explanation

Explanation:
Vitamins A, D, E, and K are fat-soluble, stored in body fats and liver. Vitamin K is essential for blood clotting (synthesis of prothrombin). Vitamin B complex and vitamin C are water-soluble, excreted in urine and not stored extensively. Fat-soluble vitamins require dietary fat for absorption. Excess of fat-soluble vitamins can cause toxicity (hypervitaminosis).

Explanation:
The sublingual glands are the smallest of the three paired salivary glands, located under the tongue. The parotid is near the ear, submandibular under the jaw.

Explanation:
Saline soil has lower water potential, causing exosmosis from root cells, leading to plasmolysis and wilting. R correctly explains A.