EASY
10th West Bengal Board
IMPORTANT
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Birds are cold-blooded animals.

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Important Questions on Evolution and Adaptation

EASY
10th West Bengal Board
IMPORTANT
Pteridosperm is in between pteridophyte and gymnosperm.
EASY
10th West Bengal Board
IMPORTANT
Ginkgo is a missing link.
EASY
10th West Bengal Board
IMPORTANT
Gnetum connects gymnosperm and angiosperm.
EASY
10th West Bengal Board
IMPORTANT
The fusion of two gametes produces morula.
EASY
10th West Bengal Board
IMPORTANT
Archaeopteryx is a missing link.
MEDIUM
10th West Bengal Board
IMPORTANT
Urey and Miller disapproved the Oparin's theory.
EASY
10th West Bengal Board
IMPORTANT
Vascular tissues first appear in pteridophytes.
EASY
10th West Bengal Board
IMPORTANT
Fishes have 3 chambered hearts.