1) What is the importance of study of ecological adaptations in plants & animals?
- To know the effect of pollution, growth, survival of biotic, community, morphological & anatomical changes to suit the particular habitat
2) Give 3 adaptive features of water hyacinth suitable to aquatic life
- Petioles are modified into air pockes, root with air pockets. (Parenchymatous, Aerenchymatous stem & leaf)
3) What is the importance of succulent leaves & stem for a xeric plant?
- They conserve & stare water stems are modified for reducing transpiration.
4) Why is air stored between tissues in aquatic plants?
- To maintain buoyancy, gaseous circulation.
5) Give an example for flattened or leaf- life stem
- Opuntia
6) Give an example for xerophytes.
- Opuntia, Bryophyllum
7) Give an example for leaf modified into spines.
- Opuntia
8) Give an example for petiole modified into leaf like structure.
- Acacia
9) Give an example for Hydrophyte.
- Eichhornia, Hydrilla, Nelumbo etc.
10)What are the adaplations seen in nelumbo?
- Petiole long, cylindrical, aerenchyma present in petiole.
11) Name a hydrophyte without root
- Utricularia
12)Name a plant with root pocket.
- Eichornia
13)Name a plant with succulent leaf
- Bryophyllum
14)Cycas is an example for which adaptation
- Xeric
15)What is the adaptations seen in rhizophora
- Halophytic adaption
16)Leaves are modified into needle like structures in...?
- Pinus (xeric adaptations)
17)What are Xerophytes?
- Plants that live in dry regions with very little water/ scarcity of water
18)What are hydrophytes?
- Plants that live in water/ aquatic medium.
19)Define Adaptations.
- Modifications/ changes undergone by plants &animals morphologically.
Physiologically & anatomically to suit the habitat.
20)What are mesophytes?
- Plants that live in soil with optimum water content.
21)What is a phylloclade?
- Green coloured photosynthetic flattered stem. Eg: opuntia
