Explain the different types of adaptations in plants with suitable examples.
A. 1) Most plants can aerate their roots by taking in the oxygen through the lenticels or through the surface of their root hairs
2) But plants which have their roots in very wet places, Such as ponds or m&rshes, are unable to obtain oxygen.
3) They are adapted to these water-logged conditions by having much larger air spaces
which connect the stems with the roots, making diffusion from the upper parts much more efficient.
4) The most usual adaptation is to have a hollow stem.
5) The problem of air transport is more difficult for trees.
6) An exception is the mangrove tree of the tropics which have aerial roots above the soil surface and takes in oxygen through these roots.