Q. No.The following modification of stem is used in protection from browsing animals-
(1) Tendril
(2) Node
(3) Thorn
(4) Fleshy cylinder
(1) Tendril
(2) Node
(3) Thorn
(4) Fleshy cylinder
Which of the following is not a stem modification?
(1) Turnip
(2) Citrus
(3) Bougain villea
(4) Grapevines
Some plants of arid regions have which of the following modification?
(1) Flattened stem-Opuntia
(2) Underground stem-Potato
(3) Thorn-Citrus
(4) Tendril- Grapevine
Which of the following has chlorophyll in their stem to carry out photosynthesis?
(1) Opuntia
(2) Citrus
(3) Bougainvillea
(4) Cucumber
Which of the following has chlorophyll in it's flattened stem to carry out photosynthesis?
(1) Opuntia
(2) Euphorbia
(3) Citrus
(4) Watermelon
Stem spreads to new niches and when older parts die new parts are formed.
(1) Grass
(2) Strawberry
(3) Mint
(4) All of these
Find the one which doesn't belong to the above category.
The stem of Pistia and Eichhornia has
(1) Short internode
(2) Rosette of leaves
(3) Tuft of Roots
(4) All of these
Aquatic plants with a lateral branch having short internodes, rosette of leaves and tuft of roots are
(1) Pistia, Hydrilla
(2) Eichhornia, Hydrilla
(3) Pistia and Eichhornia
(4) Hydrilla and Valisnaria
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