Lesson 6: Comparing skeletons

• Biologie
• Middelbare school
• havo
• Leerjaar 1

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-LessonUp

-Notes

Lesson 6: Comparing skeletons

Millions of different skeletons

-We will only look at the endoskeleton

Can a skeleton say something about
how and where the animal lives?
And about what it eats?
If yes, how?

1. Diet

2. Movement

3. Environment

4. Time

1. Diet

-What kind of food do they eat? 

-Omnivors

-Herbivors

-Carnivors 

-How do their teeth look like? 

1. Diet

-What kind of food do they eat? 

-Omnivors (eat plants & meat)

-Herbivors (eat plants)

-Carnivors (eat meat)

-How do their teeth look like? 

Teeth

Canines (4 corner teeth)

Incisors (front teeth)

Molars (back teeth)

Carnivore

Herbivore

Bumpy molars with ridges

Small incisors

Often no canines

Pointy molars

Big molars

Large canines

Eye placement

Rabbit

Eye placement

Wolf

Eyes frontal

'Predators' 

Eyes on the side

'Prey'

2. Movement

-Skeleton adapted for flying

-Light bones

-Fused bones

-How does it move around? 

-Long legs for running (Cheetah)

-Only 1 toe for hard surfaces (Horse)

Worksheet comparing homologous structures

Assignment 1: 

-Start the worksheet today

-We will continue with this in the next lesson

Assignment 2: 

In groups of 4 you will investigate the skeletons

-Use the google doc file on classroom

The bones of the hand

The bones of the arm

HW for next time

-Glossary Quiz

-Improve chapter 1 and 2 of the lab report

(add images, check if everything is there)