Hinge ligaments
muscles :)
SCALLOP
push rods connected to the camshaft
the adavctor muscle
An edible bivalve mollusk (family Pectinidae) with a ribbed fan-shaped shell. Scallops swim by rapidly opening and closing the shell valves.
The opposite of opening would be closing or shutting.
The adductor muscles control the opening and closing of the clam valves. When these muscles contract, the valves close, and when they relax, the valves open. Clams use this mechanism to protect themselves from predators and regulate their internal environment.
by opening their mouths then closing it then opening it again, then closing it:-)
The valve in a sink faucet controls the flow of water by opening and closing to regulate the water pressure and temperature.
opening is 1500 n closing is 4889
governor senses the speed of spindle of engine and controls the mechanism of opening and closing of throttle valve
the ribs of a sea turtle are attached to the shell and so they sea turtle breathes by opening and closing his/hers legs.