4.6 Animals 3 - from Fish to Birds

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

4.6

The Animal Kingdom

Welcome to Biology!

• This week, we will discuss the last animal groups of 4.6: the vertebrates
• First, I will ask some questions about the last lesson
• And then we will get started with new animals!

Name the two different types of Myriapods we have. Can you give one difference between them?

Where do crustaceans life?

How many body parts do Arachnids have?

1. 1
2. 2
3. 3
4. 4

How many legs do insects have?

1. 4
2. 6
3. 8
4. 10 or more

Now onto the new groups!

• The new groups all belong to the vertebrates. 
• Vertebrates have a backbone.

Today, we will discuss:

Fish

Reptiles

Amphibians

Mammals

Birds

Fish

• Aquatic
• Most lay soft eggs 
• Some are livebearing
• Cold-blooded
• Scales
• Gills

Amphibians

• Water & land
• Most lay soft scaled eggs
• Cold-blooded
• Skin is moist and wet
• Breath with lung and skin
• Larvae breath with gills
• Undergo metamorphosis

Reptiles

• Live only on land
• Eggs have hard, leathery shells
• Cold-blooded
• Lungs
• Dry and scaly skin
• Dinosaurs were reptiles

Birds

• Live on land + in the air
• Eggs fertilized internally + have hard, chalky shells
• Warm-blooded
• Body is covered with feathers
• breath with lungs

Mammals

• Live on land
• Eggs fertilized internally
• Have milk for their young
• Warm-blooded
• Hair or fur
• Breath with lungs

Mammals

• Monotremes: lay eggs (platypus)
• Marsupials: give birth, but let them develop in pouches (kangaroo)
• Placentals: babies develop fully in placenta

That was it!

That was a lot of information, we finally finished section 4.6!