Zoology Questions and Answers
| 85. |
The environmental pollution is mainly due to |
| |
- A. animals and plants
- B. micro organisms
- C. human activities
- D. intensive cultivation
|
| 86. |
Which one of the following is an anti coagulant? |
| |
- A. antithrombin
- B. prothrombin
- C. heparin
- D. fibrinogen
|
| 87. |
Which one of the toxic gases in the environment lowers the resitance to pneumoniain human beings? |
| |
- A. carbon dioxide
- B. sulphur dioxide
- C. hydrogen dioxide
- D. hydrogen chloride
|
| 88. |
Cell divison takes place |
| |
- A. in the cytoplasm
- B. in the nucleus
- C. in the mitochondria
- D. in the nucleolus
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