2381. Number of spiracles present in the thorax of cockroach is___________?
✅ D. 4
Option A: 2 Option B: 3 Option C: 5 Option D: 4 Correct Answer : 4 Read more
Author: Sheeraz Ahmed – Page 120
2382. Which of the following promotes growth in plants?
✅ B. Calvin cycle
Option A: Photorespiration Option B: Calvin cycle Option C: Both of these Option D: None of these Correct Answer : Calvin cycle Read more
2383. When abdomen expands, the number of spiracles open is_____________?
✅ D. 8
Option A: 2 Option B: 3 Option C: 6 Option D: 8 Correct Answer : 8 Read more
2384. Which of the following animals has a respiratory system with one way flow of the air through the lungs, and the air is renewed after inspiration?
✅ C. Aves
Option A: Cockroach Option B: Earthworm Option C: Aves Option D: Frogs Correct Answer : Aves Read more
2385. The blood enters the ________________ side of heart ?
✅ A. Posterior
Option A: Posterior Option B: Anterior Option C: Lateral Option D: All possible Correct Answer : Posterior Read more
2386. Voice box is another name used for___________?
✅ C. Larynx
Option A: Buccal cavity Option B: Pharynx Option C: Larynx Option D: Chest Cavity Correct Answer : Larynx Read more
2387. All of the following contain cartilage except:___________?
✅ D. Bronchioles
Option A: Larynx Option B: Trachea Option C: Bronchi Option D: Bronchioles Correct Answer : Bronchioles Read more
2388. Gaseous exchange through the skin is known as ______________ respiration?
✅ B. Cutaneous
Option A: Cuticular Option B: Cutaneous Option C: Skin Option D: Pulmonary Correct Answer : Cutaneous Read more
2389. Respiratory distress syndrome is common especially for infants with a__________?
✅ A. Less than 7 month
Option A: Less than 7 month Option B: Less than 8 month Option C: Less than 9 month Option D: More than 9 month Correct Answer : Less than 7 month Read more
2390. In most birds air sacs are ____________ in number?
✅ D. 9
Option A: 10 Option B: 3 Option C: 4 Option D: 9 Correct Answer : 9 Read more