Non flowering plants are included under

(1) cryptogamae

(2) phanerogamae

(3) angiosperms

(4) Both a and b

Subtopic:  Clssification System: II | Clssification System |
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Chlorophyll present in red algae is

(1) a, d

(2) a, b

(3) a, c

(4) b, c

Subtopic:  Rhodophyceae: Red Algae and Importance of Algae |
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Shape of chloroplast present in Ulothrix is

(1) cup shaped

(2) girdle shaped

(3) star shaped

(4) diffused type

Subtopic:  Algae |
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This plant is used as a packing material and also forms an excellent fodder for feeding cattle.

(1) Medicago

(2) Pongamia

(3) Cratolaria

(4) All of these

Subtopic:  General Account of Angiosperms |
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Maximum protein is present in (which is used as food in space)

(1) Chlorella

(2) Scendesmus

(3) Porphyra

(4) Spirulina

Subtopic:  Algae |
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Roots of higher plants show symbiosis with mycorrhiizas for obtaining

(1) sulphates

(2) nitrogen

(3) phosphates

(4) All of these

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
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The world's tallest (angiosperm) flowering tree is

(1) Sequoia

(2) Eucalyptus

(3) Pinus

(4) Cedrus

Subtopic:  General Account of Angiosperms |
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The wood of Pinus is

(1) manoxylic

(2) polyxylic

(3) pycnoxylic

(4) manoxylic and pycnoxylic

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
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Porous wood has abundance of

(1) vessels

(2) fibres only

(3) tracheids

(4) sieve tubes

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
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Algae are useful because they

(1) are large in number

(2) are used in alcoholic fermentation

(3) purify the atmosphere

(4) are used in curdling of milk

Subtopic:  Algae |
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