Assertion (A): Myopia is caused due to the shortening of the eyeball from front to back.

Reason (R): Myopia can be corrected by using suitable convex (converging) lens and the power of the glasses used is mentioned in plus "+".

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): Semi-circular canals are present in the middle ear and they contain sensory cells responsible for the static balance of the body.

Reason (R): One end of each of the three semi-circular canals is widened to form an ampulla which contains the sensory cells for dynamic balance.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): The human ear is responsible for hearing, dynamic equilibrium and also static balance.

Reason (R): Cochlea, semi-circular canals and vestibule (utriculus and sacculus) are responsible for hearing, dynamic balance and static balance respectively.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): Hormones are the secretions from some glandular parts of the body which regulate certain physiological processes by chemical means.

Reason (R): Hormones are directly poured into the target organs which are usually very close to the source/gland secreting the hormones.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.