Assertion (A): We urinate more in summer.

Reason (R): Sweat glands are more active in summer.

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

Rahul inserted a hairpin into his right ear to remove ear wax. He felt a sudden sharp pain with loss of hearing. This was due to:

1. Rupture of eardrum
2. Rupture of vestibule
3. Rupture of cornea
4. Rupture of pinna

A biology teacher asked her students to give two examples of vestigial organs in the human body.

Raj said: Wisdom teeth and Pinna

Sonu said: Body hair and large intestine

Lata said: Vermiform appendix and wisdom teeth

Abhay said: Pinna and Ossicles

Who were correct?

1. Abhay and Sonu
2. Sonu and Lata
3. Raj and Lata
4. Abhay and Raj

During a practical exam, a plant cell in a particular solution was placed under a compound microscope. Students were told to observe the cell and name the tonicity of the solution and mention the process that occurred in the cell.

1. Isotonic, Endosmosis
2. Hypotonic, Active Transport
3. Hypertonic, Endosmosis
4. Hypertonic, Exosmosis