Aerating openings formed in the bark through which exchange of gases takes place and water is lost in the form of vapours are___________?

Related Mcqs:

1. The main nitrogenous waste formed in the body of earthworm is/are___________?

   A. Ammonia B. Urea C. Uric acid D. Trimethylamine oxide...

2. Which of the following openings have cilia?

   A. Nephrostome B. Nephridiopore C. Both of these D. None of these...

3. The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________?

   A. Neutral point B. Compensation point C. Parallel point D. Competitive point...

4. The higher animals have special organs for exchange of gases as their skin is ___________ ?

   A. Thin B. Thick C. Soft D. Hard Submitted by: Rashid Mehmood...

5. The tumours which are of small size and localized are___________?

   A. benign B. malignant C. gentle D. nasty...

6. Salivary glands present in front of ear are___________?

   A. Sublingual B. Submaxillary C. Submandibular D. Parotid...

7. Maximum number of species of living things on earth are___________?

   A. Algae B. Fungi C. Insects D. Protozoa...

8. The cells present in testes and secrete testosterone are___________?

   A. Sertoli cells B. Germinal cell C. Interstitial cells D. Spermatocyte...

9. Most dinoflagellates are___________?

   A. Unicellular B. Multicellular C. Both of these D. Zooflagellates...

10. Complex specialized flagellates living symbiotically in the gut of termites are___________?

    A. Trichonymphas B. Trypanosoma C. Euglena D. Radiolarians...