All of the following are elements that plants need in very small amounts except _____.

1. 1. Chlorine
   2. Iron
   3. Hydrogen
   4. Copper

Which of the following hepatitis is more contagious?

1. 1. HDV
   2. HAV
   3. HCV
   4. HBV

Secondary cell wall of sclerenchyma cells is impregnated with _____.

1. 1. Lignin
   2. Cellulose
   3. Pectin
   4. Peptidoglycan and murein

In fermentation _____ ATP produce per glucose molecule.

1. 1. 2
   2. 4
   3. 6
   4. 8

Which of the following proteins have role in heredity?

1. 1. Nucleo-proteins
   2. Chromo-proteins
   3. Phospho-proteins
   4. Lipo-proteins

Circulatory system is open type in all of the following except _____.

1. 1. Gastropoda
   2. Arthropoda
   3. Cephalopoda
   4. Pelecypoda

A group of 8 cocci is called_____.

1. 1. Octococci
   2. Diplococci
   3. Sarcina
   4. Tetrad

“lubb” sound is produced due to _____.

1. 1. Closure of inlet valve
   2. Opening of inlet valve
   3. Closure of outlet valve
   4. Opening of outlet valve

Which of the follwing is a childhood disease resulting from nutritive Ca2+ deficiency?

1. 1. Tetany
   2. Osteomalacis
   3. Hypocalcaemia Tatanic spasms
   4. Rickets

The word virus is derived from Latin word venome meaning _____.

1. 1. Sore Fluid
   2. Salty Fluid
   3. Sweet fluid
   4. Poisonous Fluid