Which of the following statement is correct?
1. Ovules are not enclosed by ovary wall in gymnosperms
2. Selaginella is heterosporous, while Salvinia is homosporous
3. Horsetails are gymnosperms
4. Stems are usually unbranched in both Cycas and Cedrus

 

Subtopic:  Gymnosperms: I | Gymnosperms |
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Which one is wrongly matched?

1. Uniflagellate gametes - Polysiphonia
2. Biflagellate zoospores - Brown algae
3. Gemma cups - Marchantia
4. Unicellular organism - Chlorella

Subtopic:  Rhodophyceae: Red Algae and Importance of Algae |
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An example of colonial alga is

(1) Chlorella

(2) Volvox

(3) Ulothrix

(4) Spirogyra

Subtopic:  Algae |
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Double fertilisation is exhibited by

(1) gymnosperms

(2) algae

(3) fungi

(4) angiosperms

Subtopic:  General Account of Angiosperms |
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Life cycle of Ectocarpus and Fucus respectively are

(1) Haplontic, Diplontic

(2) Diplontic, Haplodiplontic

(3) Haplodiplontic, Diplontic

(4) Haplodiplontic, Haplontic

Subtopic:  Life Cycle Patterns in Plants |
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Zygotic meiosis is characteristic of

1. Fucus

2. Funaria

3. Chlamydomonas

4. Marchantia

Subtopic:  Life Cycle Patterns in Plants |
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Life cycles of Ectocarpus and Fucus respectively are:

1. Diplontic, Haplodiplontic

2. Haplodiplontic, Diplontic

3. Haplodiplontic, Haplontic

4. Haplontic, Diplontic

Subtopic:  Life Cycle Patterns in Plants |
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Select the mismatch

1. Cycas - Dioecious

2. Salvinia - Heterosporous

3. Equisetum - Homosporous

4. Pinus - Dioecious

Subtopic:  Gymnosperms: I | Gymnosperms |
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Conifers are adapted to tolerate extreme environmental conditions because of

(1) broad hardy leaves

(2) superficial stomata

(3) thick cuticle

(4) the presence of vessels

Subtopic:  Examples of Gymnosperms |
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In bryophytes and pteriodophytes, transport of male gametes requires

1. insects

2. birds

3. water

4. wind

Subtopic:  Bryophytes | Pteridophytes: Heterospory |
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