Which of the following plant bears colourless, white and small flowers
Answers
Answer:
Characteristics common to aquatic plants:
1. Most aquatic plants do not need cuticles or have thin cuticles as cuticles prevent loss of water.
2. Aquatic plants keep their stomata always open for they do not need to retain water.
3. On each side of their leaves are a number of stomata.
4. Aquatic plants have less rigid structure since water pressure supports them.
5. Since they need to float, leaves on the surface of plants are flat.
6. The presence of air sacs enables them to float.
7. Their roots are smaller so water can spread freely and directly into the leaves.
8. Their roots are light and feathery since they do not need to prop up the plants.
9. Roots are specialized to take in oxygen.
Adaptation of aquatic plants is evident by their structure: deeply dissected and waxy leaves, specialized pollination mechanism and variation in growth pattern. These are the types of plants based on adaptation:
1. Totally submerged plants – Are considered true water plants or hydrophytes. Example: Water starwort submerged in a marsh pond.
2. Floating plants – Are rooted in floating water (example: water lily) or not rooted in the sediment just on the surface (example: duckweed).
3. Swamp plants – Are emergent plants with their lower part submerged. (Example: reed mace).
Answer:
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