EASY
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Select the total number of organisms which possess two-chambered heart and are poikilothermal.
Scoliodon, Pristis, Clarias, Betta, Pterophyllum, Echinus, Devil fish, Cuttlefish, Sea lily, Hyla, Labeo, Torpedo, Trygon.
(a)
(b)
(c)
(d)

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Important Questions on Animal Kingdom
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Column – I | Column – II | ||
---|---|---|---|
Insulin | Addison’s disease | ||
Thyroxin | Diabetes insipidus | ||
Corticoids | Acromegaly | ||
Growth Hormone | Goitre | ||
Diabetes mellitus |
Select the correct option

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