Grave’s disease is produced due to_____.

1. 1. Undersecretion of thyroxin
   2. Undersecretion of corticosteroids
   3. Overproduction of corticosteroids
   4. Overproduction of thyroxin

Exposure to low temperature stimulates plants to flower. This is called_____.

1. 1. Vernalisation
   2. Photoperiodism
   3. Thermotropism
   4. Thermoregulation

Which of the following structure provides greater pathogenicity to the bacteria_____.

1. 1. Capsule
   2. Cell Wall
   3. Cell membrane
   4. Slime

Bacteria which grow either in the presence or absence of oxygen_____.

1. 1. Aerobic bacteria
   2. Anaerobic bacteria
   3. Microaerophilic
   4. Facultative bacteria

Which of the following statement about neuron is incorrect_____.

1. 1. Like all the living cell, when they mature and divide to form similar cells
   2. They not only conduct impulses but also generate them
   3. They are not the only cellular component of nervous system
   4. They may show limited regenerative capabilities

Specific heat of vaporization of water is_____.

1. 1. 674 Kcal/kg
   2. 574 Kcal/kg
   3. 774 Kcal/kg
   4. 874 Kcal/kg

Panting is a representative of which mechanism?

1. 1. Pigmentation
   2. Evaporative cooling
   3. Respiration
   4. Excretion

Which of the following produces harmful gases_____.

1. 1. Plants
   2. Bacteria
   3. Motor Vehicles
   4. None of these

Which of the light is mainly absorbed by the plants?

1. 1. Orange
   2. Red
   3. Both a and b
   4. Green

Parkinson is a disease of_____.

1. 1. Lungs
   2. Eyes
   3. Bones
   4. Brain