When abdomen expands, the number of spiracles open is_____________?

Related Mcqs:

1. How many spiracles are present in cockroach_____________?

   A. 5
   B. 10
   C. 20
   D. 40

2. Number of spiracles present in cockroach is___________?

   A. 15
   B. 10
   C. 20
   D. 30

3. Number of spiracles present in the thorax of cockroach is___________?

   A. 2
   B. 3
   C. 5
   D. 4

4. In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?

   A. Arthropods
   B. Chordata
   C. Annelida
   D. Echinodermata

5. In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?

   A. echinodermata
   B. mollusca
   C. nematoda
   D. arthropoda

   Submitted by: Maryam Aftab

6. Circulatory system is open type in all of the following except:___________?

   A. Arthropoda
   B. Gastropoda
   C. Pelecypoda
   D. Cephalopoda

7. Parabronchi are open at ______________ end/s?

   A. Single
   B. Both
   C. Do not have opening
   D. None of these

8. Open circulatory system can contain_________?

   A. Red Blood Cells
   B. White Blood Cells
   C. Haemoglobin
   D. All of these

9. Stomata open due to _________ of K+ into the guard cells from the surrounding epidermis

   A. Diffusion
   B. Active transport
   C. Osmosis
   D. All of these

10. The nephridia of earthworm open into the coelom by_________?

    A. Nephrostome
    B. Nephridiopore
    C. Flame cell
    D. Anus