Worksheet Chapter 7: Adaptations of Plants in Different Habitats

1. True or False: Viviparity in halophytes allows seeds to germinate while still attached to the parent tree before dropping into the mud.

2. An aquatic plant grows entirely submerged underwater in a river. Describe two anatomical features of its leaves that adapt it to this environment.

3. A mangrove swamp is characterized by high salinity and anaerobic soil. Explain two mechanisms used by mangrove halophytes to survive high salt concentrations.

4. State two structural differences between floating hydrophytes (e.g., Eichhornia crassipes) and submerged hydrophytes (e.g., Hydrilla sp.).

5. Which adaptive feature allows mangrove plants like Rhizophora sp. to remain anchored firmly in soft, muddy soil exposed to tidal forces?

6. Compare the root adaptations of Avicennia sp. and Rhizophora sp. in relation to their respective physiological functions in mangrove ecosystems.

7. Describe two adaptations of xerophytic leaves that help minimize water loss through transpiration.

8. Explain how the presence of aerenchyma tissue assists floating aquatic plants in their environment.

9. Fill in the blank: Plants adapted to live in extremely dry and arid environments with scarce water supply are called ________.

10. True or False: Floating hydrophytes have their stomata located primarily on the lower leaf epidermis.