Aquatic arthropods respire through__________?

Related Mcqs:

1. Main blood vessel of arthropods usually:

   A. Lies on dorsal side
   B. Lies on ventral side
   C. Lies on lateral side
   D. Is not present

2. In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________?

   A. Endodermis
   B. Mesophyll
   C. Chitin
   D. Epidermis

3. The productivity of aquatic ecosystem is basically determined by light and____________?

   A. CO2
   B. O2
   C. Water
   D. Nutrients

4. Aquatic animals excrete nitrogenous waste commonly in the form of_____________?

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

5. Pinus Taxus and Picea belong to_________________?

   A. Spheospsida
   B. Filicineae
   C. Gymnosperms
   D. Angiosperms

6. Grave’s disease is produced due to____________?

   A. Undersecretion of thyroxin
   B. Overproduction of thyroxin
   C. Undersecretion of corticosteroids
   D. Overproduction of corticosteroids

7. Which of the following is largest part of brain?

   A. Cerebrum
   B. Cerebellum
   C. Medulla oblongata
   D. Thalamus

8. Which bone is called beauty bone in women?

   A. sternum
   B. clavicle
   C. maxilla
   D. radius

   Submitted by: Maryam Aftab

9. The haploid condition is found in _________?

   A. Amoeba
   B. Bacteria
   C. Ovum
   D. Zygote

   Submitted by: Rashid Mehmood

10. Lungs are situated in the __________?

    A. Abdominal cavity
    B. Pericardial cavity
    C. Buccal cavity
    D. Thoracic cavity

    Submitted by: Alina Zafar Awan