- Nerve fibres found throughout the heart
- Muscle fibres distributed throughout the hear walls
- Muscle fibres found only in the ventricle wall
- Nerve fibres distributed in ventricles
- Rana tigrina
- R. sylvatica
- R. ecutesbeiana
- R. esculenta
- starfish and Hydra
- Hydra and sponges
- tapeworm and Hydra
- sponge and starfish
- are thalloid forms
- have no conducting tissue
- possess archegonia
- contain chloroplast
- are thalloid forms
- have no conducting tissue
- possess archegonia
- contain chloroplast
- great economic value
- no value at all
- great ecological importance
- a lot of aesthetic value
- great economic value
- no value at all
- great ecological importance
- a lot of aesthetic value
- water is essential for fertilization for their homosporous nature
- water is essential for their vegetative propagation
- the sperms can easily reach upto egg in the archegonium
- archegonium has to remain filled with water for fertilization
- water is essential for fertilization for their homosporous nature
- water is essential for their vegetative propagation
- the sperms can easily reach upto egg in the archegonium
- archegonium has to remain filled with water for fertilization
- phycocyanin
- phycoerythrin
- fucoxanthin
- haematochrome
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