Biology - Study Mode

[#826] Nymph is the name of young one of
Correct Answer

(D) cockroach

Explanation

Solution: Nymph is the name of young one of cockroach.

[#827] Pigmentation of skin is due to
Correct Answer

(D) melanocytes

Explanation

Solution: A common cause of hyperpigmentation is an excess production of melanin. Melanin is a pigment that gives skin its color. It's produced by skin cells called melanocytes.

[#828] Norepinephrine increases
Correct Answer

(D) blood pressure

Explanation

Solution: Together with adrenaline, norepinephrine increases heart rate and blood pumping from the heart. It also increases blood pressure and helps break down fat and increase blood sugar levels to provide more energy to the body.

[#829] Night blindness is cause by lack of which vitamin?
Correct Answer

(A) Vitamin A

Explanation

Solution: Night blindness is caused by lack of vitamin A.

[#830] Monocot root differs from dicot root in having
Correct Answer

(C) well developed pith

Explanation

Solution: In dicot root, well developed pith is absent. In monocot root, well developed pith is present.