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 The leaves in pteridophyta are:
1. microphylls in Selaginella or macrophylls in ferns.
2. macrophylls in Selaginella or microphylls in ferns.
3. microphylls in Selaginella and ferns.
4. macrophylls in Selaginella and ferns.

Subtopic:  Pteridophytes |
 88%
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In majority of the pteridophytes:
I: transfer of male gamete to the female gamete does not require water
II: all the spores are of similar kinds

1. Both I and II are correct
2. Both I and II are incorrect
3. Only I is correct
4. Only II is correct
Subtopic:  Pteridophytes |
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The class of pteridophytes to which Selaginella belongs is:
1. Psilopsida
2. Sphenopsida
3. Lycopsida
4. Pteropsida
Subtopic:  Pteridophytes |
 78%
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The giant redwood tree Sequoia, one of the tallest tree species, is a:
1. Pteridophyte 2. Monocot angiosperm
3. Dicot angiosperm 4. Gymnosperm
Subtopic:  Gymnosperms |
 89%
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The reduced male gametophyte in a gymnosperm is called a:
1. pollen grain
2. microsporangium
3. microsporophyll
4. antheridium
Subtopic:  Gymnosperms |
 74%
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Consider the two statements:
Statement I: The gymnosperms are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation.
Statement II: The seeds that develop post-fertilisation, are not covered, i.e., are naked.

1. Statement I is correct; Statement II is incorrect
2. Statement I is incorrect; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is correct
Subtopic:  Gymnosperms |
 90%
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The classification based on the premise that organisms belonging to the same taxa have a common ancestor is called as:
1. Cytotaxonomy
2. Phylogenetic system
3.  Chemotaxonomy
4. Numerical taxonomy
Subtopic:  Classification System: I | Classification System: II | Classification System |
 95%
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The form and size of algae is highly variable. Which of the following is/are correct?
I: Ulothrix is a colonial alga.
II: Volvox is a filamentous alga.
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Algae | Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae: II | Chlorophyceae: Green Algae: III |
 89%
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Reproduction involving fusion between one large, non-motile (static) female gamete and a smaller, motile male gamete is termed:
1. Isogamous
2. Agamous
3. Anisogamous
4. Oogamous
Subtopic:  Algae |
 89%
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Green algae usually have a rigid cell wall made of:
1. an inner layer of cellulose and an outer layer of pectose
2. an inner layer of pectose and an outer layer of cellulose
3. an inner layer of cellulose and an outer layer of lignin
4. an inner layer of cellulose and an outer layer of chitin
Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae: II | Chlorophyceae: Green Algae: III |
 90%
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