BIOLOGY

1. Brain and the spinal cord are invested by membranes called: 

A. Arachnoids        

B. Pleural membrane

C. Meninges        

D. None of these

2. Which one of the following organisms has a role in converting nitrates to free nitrogen?

A. Pseudomonas

B. Nitrosomonas

C. Nitrobacter      

D. Rhizobium

3. Consider the following with reference to human nutrition:

1. Vitamin A        

2. Vitamin B2

3. Vitamin E

For which of these are green leafy vegetables rich sources?

A. 1 and 2  

B. 2 only

C. 1 and 3  

D. 1,2 and 3

4. Select correct match of the Biological theories or laws and Scientists.

A. Laws of Inheritance                      - Lamarck

B. Theories of Organic Evolution       - Darwin                         

C. Theories of Natural Selection        - Mendel                        

D. Germplasm Theory                        - Weismann

5.  Which one of the following is the richest source of vitamin C?

A. Guava    

B. Pineapple

C. Orange  

D. Tomato

ANSWERS:

1. ANS C

2. ANS D

3. ANS. D

4. ANS. D

5. ANS. C