1.  aerenchyma

2.  trichomes

3.  pneumatophores

2.  National Institute of Communicable disease — Lucknow

3.  Central Drug Research Institute — Kasauli

4.  National Institute of Nutrition — Mumbai

1.  resins

3.   lignins

4.  tannins

1.  transfer genes from one plant to another

3.   fix atmospheric nitrogen in the soil

4.  produce a wide variety of antibiotics

2.  Lysergic acid dimethyl amide — narcotic

3.  Heroin — psychotropic

4.  Benzodiazepam — pain killer

1.  UUA-valine

3.  AUG-cysteine

4.  CCC-alanine

1.  drying of the lake very soon due to algal bloom

2.  an increased production of fish due to lot of nutrients

4.  increased population of aquatic food web organisms

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.

2.  10 cell of antheridium +3 prothallial cell

3.  9 cell of antheridium +4 prothallial cell

4.  8 cells of antheridium +6 prothallial cell

1.  If both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

3.  If the Assertion is true but the Reason is false.

4.  If both the Assertion and the Reason are false.

5.  If Assertion is false but Reason is true.