Which vitamin deficiency leads to defective blood clotting? MCQ with Answer and Explanation

Explanation:
Arteries (except pulmonary arteries) carry oxygenated blood away from the heart to body tissues. Pulmonary arteries carry deoxygenated blood from heart to lungs. Veins return blood to the heart. Capillaries are exchange vessels. Arteries have thick elastic walls to withstand high pressure. The aorta is the largest artery. Remember: 'A' for Artery = Away from heart.

Explanation:
After fertilization, the ovary of the flower develops into fruit, while the ovule develops into seed. The ovary wall becomes the pericarp (fruit wall). Petals, sepals, and stamens usually wither. Some fruits are parthenocarpic (without fertilization, e.g., banana). The fruit protects seeds and aids in dispersal. Anther produces pollen grains. Thus, fruit is a mature ovary.

Explanation:
The epididymis is a coiled tube on the testis where sperm mature and are stored. Seminal vesicles and prostate add fluid, vas deferens transports sperm.