In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth.

Related Mcqs:

1. Mantle in molluscs is present over____________?

   A. Head B. Ventral muscular foot C. Dorsal visceral region D. All of these...

2. How many milky teeth or primary teeth does a human have?

   A. 33 B. 20 C. 15 D. 32 Submitted by: Jeetesh...

3. The first stage of development in which a cavity appears is the__________?

   A. Neurula B. Morula C. Gastrula D. Balastula...

4. A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________?

   A. Pyrolysis B. Pyrosis C. Peristalsis D. Dyspepsia...

5. The single main opening of the sponge cavity is____________?

   A. Osculum B. Ostia C. Spongocoel D. None of these...

6. The number of chromosomes in human cell is_____________?

   A. 48 B. 44 C. 46 D. 26 Submitted by: Muhammad Nawaz...

7. Which of the following manufactures carbohydrates by the process of photosynthesis?

   A. chloroplast B. chromoplast C. leucoplast D. All of these Submitted by: Muhammad Nawaz...

8. cells are of__________types?

   A. 4 B. 3 C. 2 D. 1 Submitted by: Muhammad Nawaz...

9. A Vegetable containing sulphur is____________?

   A. Potato B. Cabbage C. Brinjal D. Pumpkin Submitted by: ZAHID LAKHO...

10. In human beings influenza is caused by_________?

    A. bacteria B. protist C. virus D. fungi Submitted by: Maryam Aftab...