Morphology Of Flowering Plants Root Stem And Leaf Question 210

Question: Read the assertion and reason carefully:

Assertion : Heterophylly is seen in many aquatic plants. Reason : Aquatic plants survive in two different conditions of the environment.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

Show Answer

Answer:

Correct Answer: A

Solution:

Heterophylly is met with in many aquatic plants, particularly in those growing in shallow running water.

Here the floating or aerial leaves and the submerged leaves are of different kinds; the former are generally broad, more or less fully expanded and undivided or merely lobed; while the latter are narrow, ribbon-shaped, linear or much dissected.

Examples are Sagittaria, Ranunculus aquatilis, Limnophila heterophylla.