Cette leçon contient 17 diapositives, avec quiz interactifs et diapositives de texte.
La durée de la leçon est: 45 min
Éléments de cette leçon
Welcome!
Today:
Questions about last lesson
Explanation about classes in animal kingdom
Making exercises
Slide 1 - Diapositive
Animals with an exoskeleton
Slide 2 - Carte mentale
Animals that have bilateral symmetry
Slide 3 - Carte mentale
What are we going to learn today?
Today we will:
Take a look into the animal kingdom.
Learn what all the animals classes are and what the characteristics of them are.
Slide 4 - Diapositive
Sponges
Sponges are asymmetrical and don't have a skeleton.
They do have thick fibers which makes them somewhat firm.
They are sea animals that live on the seabed.
Slide 5 - Diapositive
Slide 6 - Diapositive
Cnidarians
Cnidarians have radial symmetry (from the top) but don't have a skeleton. The water makes them firm. They catch prey using their tentacles and their specialized nettle cells.
Slide 7 - Diapositive
Slide 8 - Diapositive
Molluscs
Molluscs are animals that feel very slimey.
They have bilateral symmetry and often have an exoskeleton (often a house).
Slide 9 - Diapositive
Slide 10 - Diapositive
Echinoderm
Sea stars and cucumbers are all echinoderm.
They have radial symmetry and an endoskeleton.
Their skin has spikes that differ in size.
Slide 11 - Diapositive
Slide 12 - Diapositive
Arthropods
Arthropods make up the biggest class of animals. They have bilateral symmetry and an exoskeleton. Because of that, their body is segmented. They can live in both the water and on land.
Slide 13 - Diapositive
Slide 14 - Diapositive
Vertebrates
This class also have different animals that live in the water and on land. They all have bilateral symmetry and an endoskeleton with a spine (vertebra).
Slide 15 - Diapositive
Slide 16 - Diapositive
Homework
The homework for next week are all the exercises of paragraph 3.3, you can work on them now.
La durée de la leçon est: 45 min
