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Protozoa

Filamentous a...

Question

Filamentous and colonial forms are respectively

A

Gracilaria and Chlorella

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B

Gelidium and Spirulina

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C

Laminaria and Sargassum

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D

Anabaena and Volvox

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Solution

The correct option is D Anabaena and Volvox
Filamentous forms are Anabaena, Spirulina, Laminaria and Sargassum.
Colonial alga is Volvox.
Multicellular algae are Gracilaria and Gelidium.

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Q. Match column I with column II and select the correct option from the codes given below.

Column I	Column II
(a)	Spirogyra	(i)	Unicellular
(b)	Chlamydomonas	(ii)	Filamentous
(c)	Volvox	(iii)	Colonial form
(d)	Some giant marine forms	(iv)	Kelps

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A	Lichen	i	Filamentous
B	Chlamydomonas	ii	Colonial
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(c) Skeleton consists of siliceous spicules and spongin fibres.
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\begin{matrix} Column-I & Column-II A. & Spirogyra & (i) & Unicellular B. & Chlamydomonas & (ii) & Filamentous C. & Volvox & (iii) & Colonial form D. & Some giant marine forms & (iv) & Kelps \end{matrix}

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