Which option correctly completes the fact: which organ is primarily responsible for gas exchange in humans?

✅ B. rhizoids

Option A: stem tuber Option B: rhizoids Option C: sporangium Option D: none of these Correct Answer : rhizoids Read more

✅ C. Lenticels

Option A: Hydathods Option B: Stomata Option C: Lenticels Option D: None of these Correct Answer : Lenticels Read more

✅ B. Oestrogen.

Option A: Progesteron Option B: Oestrogen. Option C: Parathyroid hormon Option D: Correct Answer : Oestrogen. Read more

✅ C. Oxygen

a: Carbon monoxide | b: Methane | c: Oxygen | d: Ammonia Read more

✅ A. Calcium

Option A: Calcium Option B: Silica Option C: Chitin Option D: Both A & B Correct Answer : Calcium Read more

✅ A. Iris

a: Iris | b: Cornea only | c: Retina | d: Optic nerve Read more

✅ D. amniotic fluid

Option A: cervix Option B: vagina Option C: uterus Option D: amniotic fluid Correct Answer : amniotic fluid Read more

✅ D. Pinocytosis

Option A: Endocytosis Option B: Exocytosis Option C: Phagocytosis Option D: Pinocytosis Correct Answer : Pinocytosis Read more