The skeleton of the sponges is in the form of variously shaped needle like structures called___________?

Related Mcqs:

1. The skeleton of sponges is made up of___________?

   A. Calcium B. Silica C. Both of these D. None of these...

2. Inner layers of the sponges are made up of__________?

   A. Pinacocytes B. Choanoderm C. Choanoytes D. Pinacoderm...

3. The sponges in which sperms develop first are included in the category of__________?

   A. Peritandrous B. Pertandrous C. Protendrous D. Protandrous...

4. Sperms released in water are carried to the mesenchyme in sponges by__________?

   A. Amoeboid cell B. Stipules C. Spicules D. Spines...

5. 80% of the food of sponges consists of__________?

   A. Detrital organic particles B. Zooplankton and small animals C. Phytoplanktons D. all of these...

6. In sponges fertilization takes place in____________?

   A. Ectoderm B. Mesenchyme C. Endoderm D. Uterus...

7. Which of the following animal has a hydrostatic skeleton?

   A. Earthworm B. Round worm C. Tape worm D. Pin worm...

8. Bean shaped cells in plants are_________?

   A. mesophyll cells B. xylem cells C. phloem cells D. guard cells Submitted by: Maryam Aftab...

9. Circular disc shaped structure with a round hole is ___________ ?

   A. Iris B. Pupil C. Horoid coat D. Ciliary body Submitted by: Rashid Mehmood...

10. Bean shaped cells in plants are: _________?

    A. Mesophyll cells B. Xylem Cells C. Phloem Cells D. Guard Cells Submitted by: Sajid Hussain Gopang...