Question

choose the odd one out:
1. lungs, alveoli, heart, larynx, pharynx
2. abduction, hinge, adduction, circumduction
3. cervical, thoracic, coccyx, chitin
4. radius, metacarpals, carpals, femur
5. ball and socket, hinge joint, joints in cranium, pivot joint

These are all questions of 9th standard PE, bio part. Pls help me out...and pls don't give wrong answer! ​

Answer 1

Answer:

1. heart

2. abduction

3. chitin

4. femur

5. joints in cranium