Q10 of 72 Page 207

Write true or false for the following statements:

The animals belonging to phylum Mollusca have a peculiar water-driven tube system that they use for moving around.

False

Most of the animals belonging to phylum mollusca have a muscular organ for movement which is known as 'foot'.


Presence of water driven tube feet for movement is the characteristic feature of animals belonging to phylum echinodermata.


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Write true or false for the following statements:

Gymnosperms are usually perennial, evergreen and woody.

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Write true or false for the following statements:

Cotyledons represent a bit of pre- designed plant in the seed.

 8

Write true or false for the following statements:

Platyhelminthes are either free living or parasitic.

 9

Write true or false for the following statements:

The animals belonging to phylum Nematoda contain only tissues and no real organs.