Answer:
It's the lowest level of biological organization that can survive and reproduce as long as appropriate conditions are achieved.
Explanation:
C there your answer i hope it help
I think its c because a pivot joint would be circular movement in only one manner and that matches the turning of a door knob. a hinge joint does not swivel like a chair or move like a shower head, and a cabinet door, in my opinion would be like a hinge joint
