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Science Test Space
Class 9
Environmental Science
Adaptation in plants, animals and conservation of water
4.
Hydrophytes and the adaptations present in hydrophytes
Question:
4
m.
Choose the correct answer
:
[
Note
:
There may be more than one answer for some questions
.]
1
.
Which among the following is true about
Hydrilla
?
Roots are poorly developed
It is a submerged hydrophyte
Roots are well developed with root caps
Leaves are small, ribbon-like and finely divided
2
.
How does plants react to water level changes?
Long leaf stack enables the leaves to move in response to change in water level
There is presence of swollen petiole
There is presence of air chambers
Floating leaves have long leaf stalks
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