The characteristic of thorns are

(1) Herbaceous, coiled and slender

(2) Woody, straight and pointed

(3) Herbaceous, straight and slender

(4) Woody, coiled and pointed

Subtopic:  Aerial Stem Modification |
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The following modification of stem is used in protection from browsing animals-

(1) Tendril

(2) Node

(3) Thorn

(4) Fleshy cylinder

Subtopic:  Aerial Stem Modification |
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Which of the following is not a stem modification?

(1) Turnip

(2) Citrus

(3) Bougain villea

(4) Grapevines

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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Thorn is not found in

(1) Citrus

(2) Bougainvillea

(3) Cucumber

(4) Both 1 and 2

Subtopic:  Aerial Stem Modification |
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Stem tendril is not found in

(1) Cucumber

(2) Pumpkins

(3) Watermelon

(4) Citrus

Subtopic:  Aerial Stem Modification |
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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

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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Which of the following has chlorophyll in their stem to carry out photosynthesis?

(1) Opuntia

(2) Citrus

(3) Bougainvillea

(4) Cucumber

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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Which of the following has chlorophyll in it's fleshy cylindrical stem to carry out photosynthesis?

(1) Euphorbia

(2) Opuntia

(3) Citrus

(4) Watermelon

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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Which of the following has chlorophyll in it's flattened stem to carry out photosynthesis?

(1) Opuntia

(2) Euphorbia

(3) Citrus

(4) Watermelon

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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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.

Subtopic:  Morphology of Stems | Aerial Stem Modification |
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Difficulty Level: