List out some common features in cat, rat and bat.

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Bat, rat and cat belong to class mammalia and have following common features 

(a) All have notochord at some stage of life cycle. 

(b) All are warm blooded. 

(c) All have four chambered heart. 

(d) All have skin covered with hair and with sweat and oil glands

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Cat, Bat and Rat belong to galss Mammalia. They have following common fetures :
(i) Thees have notochord in their embryonic life.
(ii) These are warm blooded.
(iii) These have-chambered heart.
(iv) Theses have skin covered with haris and with sweat and oil glands.

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