The type of muscle found in the walls of hollow organs, such as the stomach, and in the walls of blood vessels is

Correct Answer: C

Rationale: Smooth muscle, lacking striations, lines hollow organs and blood vessels for involuntary movement.

Correct Answer: A

Rationale: Antigens are typically proteins/polypeptides; recognition doesn't require prior exposure (innate immunity).

Correct Answer: B

Rationale: Cloudy/milky plasma indicates high lipids; normal plasma is ~55%, so anaemia isn't just "˜more plasma.'

Correct Answer: A

Rationale: Lymphocytes (T cells) drive rejection; reducing their count (e.g., immunosuppressants) helps.

Correct Answer: B

Rationale: Sclerenchyma is permanent tissue with dead cells which are long and narrow, closely packed without intercellular spaces. Sclerenchyma tissue is present in stems in the vascular bundles, roots, veins of leaves, hard covering of seeds and nuts.