Question

Intrinsic heterophylly is found in all except
A. Cotton
B. Buttercup
C. Coriander
D. Larkspur

Answer 1

Hint: The many plants in our diversity have different features. They belong to different families depending on their features. They can be toxic or useful to mankind. Some of them have developed modifications to adapt themselves to the new altered environment.

Complete answer:
The presence of different shaped leaves on the same shoot of a plant depicts heterophylly.
Plasticity is the condition in which one can change the shape or can be moulded. So the intrinsic heterophylly can also be called plasticity.
Option A: Cotton: Cotton is the economic plant that is fluffy and grows soft balls of cotton. It belongs to the Malvaceae family. It has heterophylly in its group. It is grown as an adaptation to the surroundings.
Option B: Buttercup: It is a member of the family Ranunculaceae. They are toxic to cattle and humans. They can induce diarrhoea, blistering etc. They can sometimes be used as medicines for arthritis, bronchitis etc. They do not have plasticity or intrinsic heterophylly.
Option C: Coriander: coriander is a herb used in the houses for cooking. The leaves are dried and used. They bring flavour to the food. The leaves of coriander also show intrinsic heterophylly as an adaptation to surroundings.
Option D: Larkspur: It is a perennial plant belonging to the family Ranunculaceae. It is toxic to human beings. It also exhibits plasticity to adapt to the surroundings.

So the answer is option B: Buttercup.

Note: Buttercup is a herb of very large genus. There are more than 2000 species of it. They can grow up to 16 inches in height. They have 5 cup-shaped petals. They usually grow in April to May months. They can be distinguished by their shiny petals.