Fusion of two gametes which are dissimilar in size is termed as

 
1. Oogamy 2. Isogamy
3. Anisogamy 4. Zoogamy

Subtopic:  Algae |
 85%
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A prothallus is

1. A structure in pteridophytes formed before the thallus develops
2. A sporophytic free living structure formed in pteridophytes
3. A gametophyte free living structure formed in pteridophytes
4. A primitive structure formed after fertilization in pteriodophytes
Subtopic:  Pteridophytes |
 65%
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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 is liverworts
3. Diploid and is found in pteridophytes
4. Haploid and is found in pteridophytes

Subtopic:  Bryophytes |
 83%
From NCERT
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Antheridium of bryophytes produce _______ antherozoids.

1. Non-motile 2. Uni-flagellate
3. Biflagellate 4. Ciliate
Subtopic:  Bryophytes |
 83%
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What is the function of the gemmae produced by some liverworts?
1. a water gathering structure
2. a light gathering structure
3. a sexual structure
4. an asexual structure

Subtopic:  Bryophytes | Bryophytes (Liverworts) |
 81%
From NCERT
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The life cycle of Ectocarpus, Polysiphonia and kelps is:
1.Diplontic
2.Haplontic
3.Aplantic
4.Haplo-diplontic

Subtopic:  Life Cycle Patterns in Plants (OLD NCERT) |
 83%
From NCERT
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Bryophytes are attached to the substratum by rhizoids that are:

1. Unicellular 2. Multicellular
3. Acellular 4. Unicellular or multicellular
Subtopic:  Bryophytes |
 66%
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Evolutionarily, the first terrestrial plants to possess vascular tissues are:

1. Bryophytes 2. Pteridophytes
3. Gnetales 4. Cycads
Subtopic:  Pteridophytes |
 92%
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All the following are characteristics of bryophytes except:
1. spore producing
2. dominant gametophyte
3. lignified tissues
4. producing antheridium and archegonium

Subtopic:  Bryophytes |
 86%
From NCERT
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