Types of Skeleton

What serves living things with support, movement and protection?

• Bone

• Muscles

• Skeleton

• Tendons

The main skeletons types are classified as ...

• Endoskeleton (opt. 1)

• Exoskeleton (opt.2)

• Human skeleton (opt.3)

• Hydrostatic skeletons (opt.4)

• Options ( 1,2,4)

Hydrostatic skeletons occur in...

• Flatworms, roundworms, earthworms, starfish and slugs.

• Frogs and newts.

• Insects, spiders, scorpions and crabs.

• All of the above.

Lack of protection is a disadvantage for which skeleton type? (ANA)

• Endoskeleton

• Hydrostatic skeleton

• Exoskeleton

• None of the above

Exoskeletons are soft.

• True

• False

Endoskeletons are skeletons outside the body.

• True

• False

Which type of skeleton does a snail posses?

• Endoskeleton

• Hydrostatic skeleton

• Exoskeleton

• Both ( hydrostatic skeleton and exoskeleton)

What is the exoskeleton made of ?

• Bone

• Chitin

• Fluid

• None of the above

What is the role that chitin plays in an exoskeleton?

• It fills the body cells and cavities in the body.

• It enables the exoskeleton to grow and stretch.

• It forms body plates with flexible joints which allows for muscle attachment.

• None of the above.

Lack of protection is a disadvantage for which skeleton type? (ANA)

• Endoskeleton

• Hydrostatic skeleton

• Exoskeleton

• None of the above