Cyanobacteria are classified under

1.  Protista

2.  Plantae

3.  Monera

4.  Algae

Subtopic:  Classification System |
 80%
From NCERT
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Fusion of two motile gametes which are dissimilar in size is termed as

1.  oogamy

2.  isogamy

3.  anisogamy

4.  zoogamy

Subtopic:  Algae |
 87%
From NCERT
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Holdfast, stipe and frond constitutes the plant body in case of

1.  Rhodophyceae

2.  Chlorophyceae

3.  Phaeophyceae

4.   All of these

Subtopic:  Pheophyceae: Brown Algae |
 78%
From NCERT
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A plant shows thallus level of organisation. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to

1.  pteridophytes

2.  gymnosperms

3.  monocots

4.  bryophytes

Subtopic:  Bryophytes |
 86%
From NCERT
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A prothallus is

1. a structure in pteridophytes formed before the thallus develops
2. a sporophytic free living structure formedin pteridophytes
3. a gametophyte free living structure formed in pteridophytes
4. a primitive structure formed after fertilisation in pteridophytes

Subtopic:  Pteridophytes |
 67%
From NCERT
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Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is

1.  monocots

2.  dicots

3.  pteridophytes

4.  gymnosperms

Subtopic:  Gymnosperms |
 72%
From NCERT
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Protonema is

1.  haploid and is found in mosses

2.  diploid and is found in liverworts

3.  diploid and is found in pteridophytes

4.  haploid and is found in pteridophytes

Subtopic:  Bryophytes |
 82%
From NCERT
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The giant redwood tree (Sequoia sempervirens) is a/an

1.  angiosperm

2.  free fern

3.  pteridophyte

4.  gymnosperm

Subtopic:  Gymnosperms |
 83%
From NCERT
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