In plant anatomy, the 'Diffusion Pressure Deficit' (DPD), also known as suction pressure, is the difference between the osmotic pressure (OP) and the turgor pressure (TP) of a cell. The formula is: MCQ with Answer and Explanation

Explanation:
The diaphragm is a dome-shaped skeletal muscle that separates the thoracic cavity (lungs, heart) from the abdominal cavity. It is the primary muscle of inspiration. Pleura lines lungs, peritoneum lines abdomen.

Explanation:
Bacillus thuringiensis (Bt) is a bacterium producing crystal (Cry) proteins toxic to specific insect larvae, used as a biological insecticide. DDT, malathion, and lindane are synthetic chemical pesticides. Biopesticides are eco-friendly, target-specific, and biodegradable. Bt formulations are used in organic farming. The cry gene is also used in GM crops like Bt cotton.

Explanation:
The stomach's gastric glands secrete hydrochloric acid (HCl), which creates an acidic environment necessary for the activation of pepsin and the initial digestion of proteins. The small intestine, with its vast surface area provided by villi and microvilli, is the primary site for the final digestion and absorption of most nutrients into the bloodstream. The liver is a large, multifunctional organ that continuously produces bile, which is stored in the gall bladder and released into the small intestine to emulsify fats. All statements are correct.