Valves
Bivalves have strong muscles in order to hold their shells closed.
no
they have two shells held together by hinges and strong muscles
they are called bivalves .(:
The clam does. Clams and other bivalves have very strong muscles that hold the shells tightly closed whenever they're in danger.
Few joined unions because the economy was strong.
The motor poinr
Their shells are really strong and the shells can cling to the rocks really strongly. The waves aren't strong enough to wash the shells away.
Their shells are really strong and the shells can cling to the rocks really strongly. The waves aren't strong enough to wash the shells away.
The hinge ligament hold the two shells together as well as the adductor muscles which controls the opening and closing of the bivalve.
Muscles are joined to bones they move by connective tissue and tendons.
Many invertebrates have shells or exoskeletons which can be used to anchor muscles.