Q4 of 19 Page 227

To which phylum do earthworm and leech belong?

Annelida

The animals belonging to this group show segments on the body. They are found in a variety of habitats such as fresh water, marine water and land.


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2

Name a group where naked seeds are present.

 3

Mention an organism which exhibits characters of both plants and animals.

 5

Give two peculiar characters of sponges.

 6

Identify the animal group having:

(a) Body spiny and radial symmetry.


(b) Bones light and hollow.


(c) Soft-bodied animals supported by calcareous shells.


(d) Four pairs of jointed legs, head and thorax fused.