Question

Heterophyllous development in response to environment is an example of which of the following phenomena?

• A. Plasticity
• B. Dedifferentiation
• C. Redifferentiation
• D. Elasticity

Hint:

Remember: \textbf{P}lasticity allows \textbf{P}lants to be flexible with their leaf shapes based on where they grow!

Answer 1

The Correct Option is A

Step 1 : Understanding the Question
This question asks to identify the biological term for the plant's ability to alter its structural development (like leaf shape) based on external environmental factors.
Step 2 : Key Formulas and approach
The approach involves identifying the definition of "Plasticity" and applying the example of heterophylly (different leaf types) seen in specific plants.
Step 3 : Detailed Explanation

Defining Plasticity: (A) Plasticity is the capability of a plant to follow different developmental pathways in response to environmental stimuli or life phases.

Heterophylly Example: In plants like cotton or coriander, leaf shapes differ between (B) juvenile and adult stages. This is developmental plasticity.

Environmental Heterophylly: In the buttercup ({Ranunculus}), the leaves (C) grown in water look significantly different from those (D) grown in air. This adaptation to habitat is environmental plasticity.

Incorrect Terms: Dedifferentiation and Redifferentiation refer to cellular maturation processes, not morphological flexibility.

Step 4 : Final Answer
The ability to produce different leaf types in response to the environment is Plasticity. Thus, the correct option is (D).