CSS 2013 General Science and Ability MCQs

Question 41. Which of these is not a region of the spinal cord? (CSS 2013)

1. Thoracic

2. Pelvic

3. Lumbar

4. None of these

Question 42. The shape of the external ear is due to: (CSS 2013)

1. Elastic cartilage

2. Fibrocartilage

3. Articular cartilage

4. None of these

Question 43. The external surface of the stomach is covered by: (CSS 2013)

1. Mucosa

2. Serosa

3. Parietal peritoneum

4. None of these

Question 44. Which of the following is not a human organ system? (CSS 2013)

1. Integumentary

2. Muscular

3. Epithelial

4. None of these

Question 45. Which of the following does not vary predictably with the depth of the aquatic environment? (CSS 2013)

1. Salinity

2. Temperature

3. Penetration by sunlight

4. None of these

Question 46. The quantity of available nutrients ______ from the lower levels of the energy pyramids to the higher ones. (CSS 2013)

1. Increases

2. Decreases

3. Remains stable

4. None of these

Question 47. Which of the following is not a major subdivision of the biosphere? (CSS 2013)

1. Hydrosphere

2. Lithosphere  

3. Stratosphere

4. None of these

Question 48. Vaccination is synonymous with _______ immunity. (CSS 2013)

1. Natural active

2. Artificial passive

3. Artificial active

4. None of these

Question 49. When a patient’s immune system becomes reactive to a drug, this is an example of: (CSS 2013)

1. Superinfection

2. Drug resistance

3. Allergy

4. None of these

Question 50. What is the smallest unit of heredity? (CSS 2013)

1. Chromosomes

2. Gene  

3. Nucleotide

4. None of these