Question

Plants which produce characterstic pneumatophores and show vivipary belong to

• A. Mesophytes
• B. Halophytes
• C. Psammophytes
• D. Hydrophytes

Answer 1

The Correct Option is B

To solve this question, we must understand the characteristics of the plant groups given in the options: Mesophytes, Halophytes, Psammophytes, and Hydrophytes.

Explanation of Key Terms:

1. Pneumatophores: These are specialized aerial roots that enable plants to breathe in waterlogged soils. They are typical in areas where oxygen is scarce, especially in swampy areas or wetlands.
2. Vivipary: This refers to the phenomenon where seeds germinate while still attached to the parent plant. This is a common adaptive feature in some plant species living in specific environments.

Analysis of Options:

• Mesophytes: These are plants that grow in environments with moderate water availability. They do not typically have pneumatophores or show vivipary.
• Halophytes: These are plants that grow in saline conditions, such as coastal areas. They often develop pneumatophores to breathe in waterlogged soils and show vivipary, aiding seedling survival in harsh environments.
• Psammophytes: These are plants adapted to sandy soils. They do not have pneumatophores or show vivipary.
• Hydrophytes: These plants are adapted to grow in water. While they may have specialized structures for aquatic life, they do not typically exhibit pneumatophores or vivipary as defining characteristics.

Conclusion: Based on the analysis, the correct answer is Halophytes because they are known to develop pneumatophores for survival in anoxic conditions found in saline and waterlogged environments and show vivipary, which facilitates survival and dispersal of their progeny.