MCQ
Thyroxine is
- AAn enzyme
- ✓A hormone
- CA vitamin
- DAn excretory product
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| List $I$ | List $II$ |
| $A$. Taenia | $I$. Nephridia |
| $B$. Paramoecium | $II$. Contractile vacuole |
| $C$. Periplaneta | $III$. Flame cells |
| $D$. Pheretima | $IV$. Urecose gland |
Choose the correct answer from the options given below:
Choose the correct option for $A, B$ and $C$ from the given four options to complete the above statement with reference to NCERT textbook