1. K
2. P
3. Zn
4. S
Zn
1. Sympathetic
2. Autonomous
3. Central, peripheral and sympathetic
4. Simple nerve cells
Central, peripheral and sympathetic
1. Iron
2. Potassium
3. Magnesium
4. Molybdenum
Molybdenum
1. Tactile stimulus
2. Viscous
3. Equilibrium
4. Chemical stimulus
Equilibrium
1. Nitrate
2. Nitrites
3. Urea and NH3
4. NH3
Nitrate
1. Respiratory organs of arachnids
2. Respiratory organs of insects
3. Excretory organs of many crustaceans
4. Digestive glands of myriapods
Excretory organs of many crustaceans
1. Manganese
2. Calcium
3. Magnesium
4. Potassium
Magnesium
1. 6
2. 9
3. 10
4. 13
9
1. Binder of cell structure
2. Co- factors of enzymes
3. Building blocks of important amino acids
4. Constituent of hormones
Co- factors of enzymes
1. Crop
2. Gizzard
3. Brain
4. None of the above
Crop