The first eukarotes appeared about __________ years ago?

Related Mcqs:

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

   A. 60%
   B. 65%
   C. 70%
   D. 75%

2. __________ is essential for the formation of hemoglobin.

   A. Calcium
   B. Iron
   C. Water
   D. Carbohydrates

3. The one that stores calcium is __________?

   A. Sarcolemma
   B. Sarcoplasm
   C. Sarcoplasmic reticulum
   D. Cytosol

4. Nodules on roots of leguminous plants have __________ bacteria?

   A. Anaerobic
   B. Nitrogen fixing
   C. Nitrifying
   D. Ammonifying

5. In Anaerobic respiration only __________ % of the energy present within the chemical bond of glucose is converted into ATP?

   A. 1%
   B. 2%
   C. 3%
   D. 4%

6. Stomatal transpiration is __________ of total transpiration

   A. 90%
   B. 91%
   C. 93%
   D. 95%

7. Addition of salts and other solutes from other cells into xylem sap, __________ the water potential of the xylem sap

   A. Increases.
   B. Lowers.
   C. Doesn’t effect.
   D. Maintains.

8. Deficiency of vitamin C will cause:__________?

   A. Beri-Beri
   B. Architis
   C. Scurvy
   D. Night-blindness

   Submitted by: Nimra Shah

9. Coelom is divided into septa in case of:__________?

   A. Molluscs
   B. Annelids
   C. Sponges
   D. Cniderians

   Submitted by: Nimra Shah

10. Path of Blood present in vessels called __________?

    A. Capillaries
    B. Lumen
    C. Platelates
    D. Plasma

    Submitted by: Imtiaz Ali Noonari