Movement and support

Do tentacles help moon jellyfish in terms of movement?

• Yes

• No

What is the function of Mesoglea tissue?

• Helps the moon jellyfish to contract muscles

• Helps the bell of the moon jellyfish to regain its original shape

• Helps the moon jellyfish move backward

• Helps the moon jellyfish move forward

Where are the muscles of the moon jellyfish?

• on the bottom side of the bell

• Near the mouth

• Oral arms

• Near tentacles

How does the moon jellyfish move forward?

• Using tentacles to sweep the water

• Draw water in by mouth and force it out

• Using oral arms to sweep the water

• Draw water in and force it out by the bell

The key terms for the moon jellyfish’s movement are

(a)  

What is the hydrostatic skeleton?

• Skeleton that supports animals’ movement by water that they draw in

• Skeleton that supports animals’ movement by water surrounding them

• Skeleton that supports animals’ movement by their body fluid or coelom

• Skeleton that supports animals’ movement by pressure of water

The mechanism that helps the moon jellyfish to move around is called___, which is performed by _____ muscle.

• Jet propulsion, firm

• Hydrostatic skeletons, coronal

• Hydrostatic skeletons, firm

• Jet propulsion, coronal

What are the other organs associated with muscles to help scallops swim?

• Tentacles and hinge

• Valves and hinge

• Labial palp and hinge

• Cerebral ganglia and valves

The first muscle is called (a)   . It is a dominant part of the scallop body, which is mostly cooked for seafood.

Phasic adductor consists of the thick filaments called ____ and thin filaments called_____, which both filaments perform a sliding mechanism to create the movement.

(a)