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Which of the following is an exclusive c...

Which of the following is an exclusive character of Class Mammalia ?

A

Homoiothermy

B

Internal fertilization

C

Presence of a 4-chambered heart

D

Presence of a muscular diaphragm

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The correct Answer is:
D
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TRUEMAN BIOLOGY-ANIMAL KINGDOM - PHYLUM CHORDATA-MULTIPLE CHOICE QUESTIONS
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  10. Mammal's heart is

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  12. In which sub-phylum Notochord extends from head to tail region and per...

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  14. In some chrodates, the notochord is modified as the vertebral column. ...

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  17. What will you look for to identify the sex of the following?

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