Low level of CO2 favours _____of the stomata.

1. 1. Opening
   2. Closure
   3. Both of these
   4. None of these

Like enzymes , coenzyme can be used _____.

1. 1. only once
   2. again and again
   3. only few times
   4. non of above

Aquatic arthropods respire through_____.

1. 1. Gills
   2. Book lungs
   3. Both a and b
   4. Spiracles

Blood vessels which carry deoxygenated blood are called_____.

1. 1. Arteries
   2. Capillaries
   3. Veins
   4. None of these

The tumours which are of small size and localized are_____.

1. 1. benign
   2. malignant
   3. gentle
   4. nasty

The number of calories required to raise the temperature of 1g of water from 15 to 16°C is called_____.

1. 1. Specific Heat capacity
   2. Specific Heat of Vaporization
   3. Both a and bc
   4. Caloric Heat

A normal metaphase chromosome with a midial centromere is _____.

1. 1. Metacentric
   2. Sub-metacentric
   3. Acrocentric
   4. Telocentric

Nissl’s granules are present in which part of the neuron_____.

1. 1. Axoplasm
   2. Myelin sheath
   3. Soma
   4. Dendrite

Rapid movement of leaves of mimosa on touching is an example of_____.

1. 1. Nastic movement
   2. Turgor movement
   3. Tropic movements.
   4. Growth movement

The foetus is protected from the mechanical damage by the_____.

1. 1. cervix
   2. vagina
   3. amniotic fluid
   4. uterus