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41.

Name the animal, which exhibits the phenomenon of bioluminescence. Mention the phylum to which it belongs.

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42.

Differentiate between

Open and Closed circulatory system

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43.

Differentiate between

Oviparity and viviparity

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Direct Development	Indirect Development
The youngs ones are completely different from their adult forms.	The young ones resemble their adult form.
Occurs in cockroach and frog	Occurs in birds, reptiles and mammals

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45.

Differentiate between :

Acoelomate and Pseudocoelomate

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46.

Differentiate between

Polyp and Medusa

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47.

Differentiate between

Chondrichthyes and Osteichthyes

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48.

Mention two similarities between
a. Aves and mammals
b. Frog and crocodile
c. Turtle and pila

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49.

Name

A limbless animal

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50.

Name

A cold-blooded animal

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