Name: Coevolution
Uploaded: 2019-07-19
Duration: 9 min 19 s
Description: This video explains the concept of coevolution and discusses the differences between coevolution and convergent evolution. Let's watch to learn more.

Question

Enumerate the anatomical adaptations of xerophytes.

Accepted Answer

The modifications in the structure of organisms to survive successfully in an environment are called adaptations of organisms. Adaptations help the organisms to exist under the prevailing ecological habitat. The plants which are living in dry or xeric condition are known as Xerophytes. Based on the habitats and the corresponding adaptations of plants, they are classified as hydrophytes, xerophytes, mesophytes, epiphytes and halophytes.

Anatomical adaptations of xerophytes are the following:

Presence of multilayered epidermis with heavy cuticle to prevent water loss due to transpiration.

The hypodermis is well-developed with sclerenchymatous tissues.

Sunken shaped stomata are present only in the lower epidermis with hairs in the sunken pits.

Scotoactive type of stomata found in succulent plants.

Vascular bundles are well-developed with several layered bundle sheath.

Mesophyll is well-differentiated into palisade and spongy parenchyma.

In succulents, the stem possesses a water storage region.

Enumerate the anatomical adaptations of xerophytes.

Important Questions on Principles of Ecology

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