Different types of skeletons & our skeleton

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Welcome!

Today:

Start with chapter 4: Jointed skeletons (TB page 86)

Making exercises 

Bone bingo

What are we going to learn today?

Today we are going to learn:

Which types of skeletons there are.

What moulting is. 

Which bones are in our body 

Skeleton

The presence of a skeleton, and where it is located, is a characteristic for animals. They can have no skeleton/hydrostatic skeleton, a exoskeleton (skeleton is on the outside) or endoskeleton. 

Animal phyla with hydrostatic skeleton

Animal phyla with exoskeleton

Animal phyla with endoskeleton

Moulting

Arthropods have a exoskeleton, but they can still grow. This means they can grow out of their ''skin'', and they need to exit it. This is called moulting. 

An exoskeleton is made out of chitin, which is both strong and flexible. 

Exoskeleton for humans

Get to work!

Read the paragraph 4.1 of the textbook (page 86) and make the exercises in the workbook (page 84)