If it is dead it will be open therefore if it is alive it will be closed. Sometimes they are open but still alive, but if you tap their shell they close it.
yes they are. they open often, i have seen it.
a sea otter eats a clam shell by using its strong teeth and paws to pry it open
the mussel of the clam keeps the shell together. But they can open it if the want.
A giant open clam shell.
it pries open the shell with its beak like a screw driver
if you found your clam in a lake,pond,or river, then take some of the water with you in a bag or container and get more of that water every once and a whileand keep your clam in it.
The clam can survive with only 3 pairs of ganglia. Two pairs control the open and closing of the shell, will the pedal controls the foot of the clam.
posterior and anterior adductor muscles
Clams are generally covered by a shell. It is a part of the clam's body, and it can open or close; when closed, it serves the purpose of protecting the clam from predators.
The hinge ligament is attached to the adjacent edges on one side of the two halves of a clam shell. This allows the clam to open and close like a door.
Starfish eat clams by grasping and pulling on the clams shell until the clam can't hold it close any longer. Once the shell is opened far enough, the starfish begins to feed on the clam.
Basically you need a clam, and a piece of sand or shell to irritate it, put it in the clam and wait for (i don't know how long) and when the time is right open up the clam and receive your pearl.