Question

This question is a bit much.

Answer 1

Swimming the whole body is being used.
Riding the bike arms, legs, and the core is being used.
The person in the wheelchair is using there upper arm muscles, and wrist to move the wheels.
Dancing uses all of the muscles having to move a lot.

Answer 2

Yes

Step-by-step explanation:

If you pay attention in each photo the parts of an arm or leg is being used, so in that case yes there are more then one group that is being used!

Hope it helps a bit :/