A patient with an uncompensated respiratory alkalosis may have

Correct Answer: C

Rationale: Hyperventilation (e.g., altitude) lowers PCO2, raising pH and causing tetany; pH > 7.45 in uncompensated cases.

Correct Answer: C

Rationale: Epidermis is the outermost layer of cells in a plant which protect the plant from injury, adverse conditions, to reduce water loss, in gaseous exchange and transpiration with the help of stomata. Xylem helps in Conduction of water.

Correct Answer: B

Rationale: Phloem is a complex permanent tissue to conduct organic food from leaves to different parts of plants. Phloem fibres are dead.

Correct Answer: C

Rationale: Muscle, nervous, and epithelial are primary tissue types in the body. Embryonic tissue refers to a developmental stage, not a distinct tissue type.

Correct Answer: B

Rationale: Mesenchyme, an embryonic connective tissue, persists in adults as a source of new connective tissue cells.