Skeleton

What is a major difference between a hydrostatic skeleton and an endoskeleton?

• A hydrostatic skeleton is located inside the body and the endoskeleton outside.

• A hydrostatic skeleton is found in worms and an endoskeleton in invertebrates.

• An endoskeleton is located inside of the bodies of vertebrates and are composed of bone, while hydrostatic skeletons are fluid filled skeletons.

• Both ( option 1 and 2)

Which type of skeleton does a snail posses?

• Endoskeleton

• Hydrostatic skeleton

• Exoskeleton

• Both ( hydrostatic skeleton and exoskeleton)

Hydrostatic skeletons occur in...

• Flatworms, roundworms, earthworms, starfish and slugs.

• Frogs and newts.

• Insects, spiders, scorpions and crabs.

• All of the above.

Endoskeletons are skeletons outside the body.

• True

• False

How many bones does an adult human have?

• 300
• 306
• 206
• 602

Who has more bones: an adult or a baby?

• baby
• adult
• both have the same
• neither have bones

What is another name for your collar bone?

• scapula
• clavicle
• patella
• sternum

What do we call the place where two or more bones meet?

• head
• cranium
• joints
• feet

Is the picture a vertebrate or invertebrate?

• Vertebrate

• Invertebrates

• None of them

What is an invertebrate?

• An animal with a backbone

• An animal without a backbone

• An animals that gave birth their young