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.Management Sciences
Category: Biology Mcqs
Diatom frustule/ shell is made of_____________?
0
A. Silica
B. Calcium carbonate
C. Manesium carbonate
D. Both B. and C.
Blood does not clot in the blood vessels due to the presence of
- Thrombin
- Fibrinogen
- Heparin
- Prothrombin
Which of the following structure primarily helps in attachment of bacteria on various surfaces____________?
A. Flagella
B. Pili
C. Both of these
D. None of these
The utilization of the products of digestion is called___________?
A. ingestion
B. absorption
C. assimilation
D. both a and b
In animals coordination is achieved by means of_________?
A. Respiratory system
B. Nervous system
C. Endocrine system
D. Both b and c
The air spaces may comprise upto _________ of total volume of leaf surface?
A. 30%
B. 20%
C. 40%
D. 50%
___________ are needed as a source of energy for the vital activities of the body?
A. Calcium
B. Iron
C. Water
D. Carbohydrates
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