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Options:
- A. Psilopsida
- B. Lycopsida
- C. Sphenopsida
- D. Pteropsida
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B. Lycopsida
Options:
- A. Capsule
- B. Foot
- C. Stalk
- D. None of these
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A. Capsule
Options:
- A. Chemoreceptors
- B. Mechanoreceptors
- C. Photoreceptors
- D. Thermoreceptors
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B. Mechanoreceptors
Options:
- A. Active transport
- B. Passive transport
- C. Diffusion
- D. none of these
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B. Passive transport
Options:
- A. Ganglia
- B. Longitudinal nerves
- C. Lateral nerves
- D. none of these
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D. none of these
Options:
- A. Heterotrophic bacteria
- B. Chemosynthetic bacteria
- C. Saprophytic bacteria
- D. Parasitic bacteria
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D. Parasitic bacteria
Options:
- A. Protozoa
- B. Porifera
- C. Echinodermata
- D. None of these
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C. Echinodermata
Options:
- A. Stripules
- B. Spicules
- C. Brails
- D. Spines
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B. Spicules
Options:
- A. Polyps
- B. Medusae
- C. Both of these
- D. None of these
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B. Medusae
Options:
- A. Calcium
- B. Silica
- C. Chitin
- D. Both A & B
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A. Calcium