Animal locomotion

1. Animal locomotion

• Aim of lesson
• Compare(салыстыру) the organs of locomotion in invertebrates and
vertebrates

2. Unicellular organisms

• Ameboid movement flow of the cytoplasm from one
side to another which pulls cell forward
• Other use cilia or flagella to move

3. Types of skeleton

•1 Hydrostatic skeleton (worms)
•2 Exoskeleton (insects and arthropods)
•3 Endoskeleton (vertebrates)

4. 1 Hydrostatic skeleton (worms)

• Soft-bodied invertebrates (like worms) have fluid filled
cavity surrounded by muscles, it is called hydrostatic
skeleton.
Sea star
worms

5. 2 Exoskeleton (insects and arthropods)

•Muscles are inside the exoskeleton

6. 3 Endoskeleton (vertebrates)

• They have skeleton (bones) inside their body. Muscles
are attached to bones