The length of small intestine in a deer is more as compared to the length of small intestine of a tiger. The reason for this is :

1. Mode of intake of food
2. Type of food consumed
3. Presence or absence of villi in intestine
4. Presence or absence of digestive enzymes

Identify the two components of phloem tissue that help in transportation of food in plants.

1. Phloem parenchyma & sieve tubes
2. Sieve tubes & companion cells
3. Phloem parenchyma & companion cells
4. Phloem fibres and sieve tubes

Which of the following statements is not true in reference to the diagram shown below?

1. Image formed is real.
2. Image formed is enlarged.
3. Image is formed at a distance equal to double the focal length.
4. Image formed is inverted.

In the diagram shown below n₁, n₂ and n₃ are refractive indices of the media 1, 2 and 3 respectively. Which one of the following is true in this case?

1. n₁ = n₂
2. n₁ > n₂
3. n₂ > n₃
4. n₃ > n₁