MCQ
A common characteristic of all vertebrates is:
- ✓Presence of skull.
- BDivision of body into head, neck, trunk and tail.
- CPresence of two pairs of functional appendages.
- DBody is covered with an exoskeleton.
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$(I)$ Transports the atmospheric air to the alveoli.
$(II)$ Clears it from foreign particles.
$(III)$ Humidifies respiratory system.
$(IV)$ Brings air to body temperature
Which of them reabsorbed actively in the nephron?
Choose the correct option