Biology problems
- 1. Damage to hearing is caused by sounds which exceed
Options- A. 70 decibels
- B. 80 decibels
- C. 100 decibels
- D. 120 decibels Discuss
Correct Answer: 120 decibels
Explanation:
High frequency sound attacks the tympanic memberance and makes it defective. 120 decibels is too high a pitch to be heard and therefore it impairs the hearing ability.
- 2. Blood is
Options- A. alkaline
- B. neutral
- C. like a buffer
- D. acidic Discuss
Correct Answer: alkaline
- 3. Main function of white blood corpuscles is _______
Options- A. Transport of carbon dioxide
- B. Transport of oxygen
- C. To produce immune system of body
- D. None of these Discuss
Correct Answer: To produce immune system of body
- 4. Oath taken by medical graduates is given by
Options- A. Aristotle
- B. Theophrastus
- C. Hippocrates
- D. Darwin Discuss
Correct Answer: Hippocrates
- 5. Branch of agriculture concerned with the production of crops
Options- A. Agrotology
- B. Agronomy
- C. Agrostology
- D. Anthropology Discuss
Correct Answer: Agronomy
- 6. Lathyrism is caused by excess consumption of.......
Options- A. Khesari Dal
- B. Mustard oil
- C. Mushrooms
- D. Polished rice Discuss
Correct Answer: Khesari Dal
- 8. In diseases like Polio, the cells that get destroyed by virus, are
Options- A. Monocytes
- B. Erythrocytes
- C. Motor neurons
- D. Sensory neurons Discuss
Correct Answer: Motor neurons
- 9. Shedding of leaves and fruits is due to the presence of hormone named
Options- A. Indole - acetic acid
- B. Naphthalene acetic acid
- C. Gibberellins
- D. Abscisic acid Discuss
Correct Answer: Abscisic acid
- 10. The process in which energy stored in carbohydrates is released
Options- A. Photosynthesis
- B. Respiration
- C. Reproduction
- D. Excretion Discuss
Correct Answer: Respiration
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