About __________ of the body weight of a mammal is water ?

Related Mcqs:

1. If the number of chromosomes in most body cells of a mammal is 40, the cells in the seminiferous tubule will have___________?

   A. 40 chromosomes
   B. 20 chromosomes
   C. 10 chromosomes
   D. While some other will have 20

   Submitted by: Rashid Mehmood

2. Sebum produced from sebaceous glands in a mammal helps in___________?

   A. Protection against micro organisms
   B. Temperature regulation
   C. Excretion
   D. All of these

3. ___________ is a mammal who fly?

   A. Ostrich
   B. Bat
   C. Peacock
   D. None of these

   Submitted by: Mohsin Ali

4. Adult human brain is about_________% of the total body weight.

   A. 2%
   B. 3%
   C. 7%
   D. 8%

   Submitted by: Muhammad Zubair

5. The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane)

   A. Deffusion
   B. Osmosis
   C. Active transport
   D. None of these

6. Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?

   A. Hagfish
   B. Fresh water fishes
   C. Bony fishes
   D. None of these

7. Mammalian kidney, under restricted water supply can conserve water by over ________ % reabsorption of glomerular filtrate

   A. 80.50%
   B. 90.50%
   C. 95.50%
   D. 99.50%

8. Water potential of pure water is__________?

   A. zero
   B. one
   C. negative
   D. two

   Submitted by: Maryam Aftab

9. Proteins comprise of ___________% of the total dry weight of a cell?

   A. 40%
   B. 50%
   C. 60%
   D. 70%

10. Complex symptoms like severe pneumonia vascular tumor sudden weight loss swollen lymph nodes and immune deficiency are features of:

    A. Polio
    B. Hepatitis
    C. AIDS
    D. HIV