3.8 vertebrates

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Welcome everyone!

Today:

Discussing homework (WB 66)

Explaining about vertebrates (paragraph 3.8, TB 73)

Making exercises

Bacteria experiment 

What are we going to learn today?

Today we will be learning:

What characteristics all vertebrates have in common.

What classes of vertebrates there are.

What the characteristics are of the different classes within the vertebrate phylum. 

Vertebrates 

Animals in the vertebrate (gewervelden) are the most complicated build, with a lot of organ systems. We are also part of this phylum :) All animals in this phylum have a backbone. 

Backbone

Vertebrates

This phylum consists of 5 classes:

Fish

Amphibians

Reptiles

Birds

Mammals

Warm blooded vs. cold blooded

Fish

Fish are aquatic animals, characterized by their gills and scales. They are cold blooded. While some fish lay eggs, others are livebearers. 

Gills

Amphibians

Amphibians are animals adapted to both living in the water and on land. They have both gills, but some of them also have lungs. The can absorb oxygen through the skin as well.  

Metamorphosis of frogs

Reptiles

Reptiles are a lot like amphibians, but rather than living in both water and land, reptiles are more commonly found in warm and dry climates. 

Eggs

Time to work!

The homework for next lesson will be exercises 57 through 61. You can start working on that right now. 

Welcome everyone!

Today:

Who is it?

Explaining about vertebrates (paragraph 3.8, TB 73)

Making exercises

What are we going to learn today?

Today we will be learning:

What characteristics all vertebrates have in common.

What classes of vertebrates there are.

What the characteristics are of the different classes within the vertebrate phylum. 

Backbone

Birds

Birds are warm blooded animals that lay hard eggs. They are the only vertebrate class that can fly. 

Due to birds being warm blooded and the embryo inside a egg not having enough isolation, birds need to keep an egg warm. This is called incubation. 

Mammals

Mammals is a varied group, which we are a part of! The one special characteristic they have in common is that they produce milk using mammary glands. 

Just like birds, mammals are warm blooded and breathe using lungs. 

All mammals give milk to younglings 

Whales use blowholes in order to breath

Gills

Lungs

Get to work!

The homework for next lesson are the exercises of paragraph 3.8 (WB page 73). You don't have to make ex. 64, 65, 70 and 71. You can start with them right now. You are allowed to speak softly with your neighbour. 

This class has a even, slimy skin.

1. Fish
2. Amfibians
3. Reptiles
4. Mammals

Looking at ways of reproduction, which class doesn't belong on this list?

1. Fish
2. Reptiles
3. Birds
4. Mammals

Browsing through this chapter, what paragraph/subject do you feel confident about?

Browsing through this chapter, what paragraph/subject do you feel not so confident about?