Give biological reasons for the following:

The hand automatically shows the direction to turn a cycle without thinking.

Choose the correct answer from the four options given below:

Which one of the following in mainly associated with the maintenance of the posture?

Briefly answer the following questions:

What is the function of ear ossicles? 

Differentiate between the following pair on the basis of what is mentioned within bracket:

Rods and cones of Retina. (Type of pigment)

Draw a neat and labelled diagram of the following:

A myelinated neuron. 

Name the following:

The cell body of a nerve cell.

State the exact location of the following:

Corpus callosum

(c) Given below are six sets with four terms each. In each set, a term is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first one has been done as an example:
Example: Fructose, Sucrose, Glucose, Calcium
Odd term: Calcium
Category: Carbohydrates

(v) Semicircular canals, cochlea, tympanum, utriculus

(c) Given below are six sets with four terms each. In each set, a term is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd one in each set and name the category to which the remaining three belong. The first one has been done as an example:

Example: Fructose, Sucrose, Glucose, Calcium
Odd term: Calcium
Category: Carbohydrates

Semicircular canals, cochlea, tympanum, utriculus

Choose the correct answer from the four options given below:

The ventral root ganglion of the spinal cord contains cell bodies of the

Given below is an example of certain structures and their special functional activities.
For example : Eye and vision. 

On a similar pattern, complete the following:

Neurotransmitters ........................