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11th West Bengal Board
IMPORTANT
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Ventral hollow nerve cord is present in the Earthworm.

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Important Questions on Classification of living organism

MEDIUM
11th West Bengal Board
IMPORTANT

The swim bladder is absent in shark. 

HARD
11th West Bengal Board
IMPORTANT

Prototherian animals do not have a placenta.

HARD
11th West Bengal Board
IMPORTANT

Kangaroo can lay eggs

MEDIUM
11th West Bengal Board
IMPORTANT

Obelia is a triploblastic animal.

HARD
11th West Bengal Board
IMPORTANT

Shark has a homocercal tail.

HARD
11th West Bengal Board
IMPORTANT

Solid nerve cord is present in the chordata.

HARD
11th West Bengal Board
IMPORTANT

Metamere is found in Leech.

MEDIUM
11th West Bengal Board
IMPORTANT

Sponges possess numerous pores in their body called osculum.