Lesson 9

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

HAVE READY:

- GOOGLE CLASSROOM

- notes

- HW FOR TODAY

ANSWER:

The agent of natural selection is colour for camouflage.

ANSWER:

a. because of a uniform colour on the oakwood floor the snails need to have a uniform colour too. 

b. The hedgerows and rough herbage clearly have more colours because the banded snails survive better.

ANSWER:

4. in spring the yellow snails will be better camouflaged in the grass and new plants growng in spring, so theyare eaten a lot less.

5. the snails with th correct colour have a better chance of surviving and so they have a better chance of reproducing and creating more individuals with there colour.

INJURIES:

Sprains 

Tennis elbow 

Torn hamstrings

DISEASES:

oseoartritis

rheumatoid arthritis

osteoporosis

BROKEN BONES:

• A complete fracture - is when the bone has broken into two pieces. 
• A greenstick fracture - is when the bone cracks on one side only, not all the way through. 
• A single fracture - is when the bone is broken in one place.
• A comminuted fracture - is when the bone is broken into more than two pieces or crushed. 
• A bowing fracture - which only happens in kids, is when the bone bends but doesn't break. 
• An open fracture - is when the bone is sticking through the skin. 
  

1. MAXILLA
2. MANDIBLE
3. CLAVICLE
4. STERNUM

1. PATELLA
2. FEMUR
3. FIBULA
4. TIBIA

1. HUMERUS
2. RADIUS
3. ULNA

1. STERNUM
2. RIBS
3. CLAVICLE
4. LUMBAR VERTEBRAE

1. CARPALS
2. METACARPALS
3. TARSALS
4. METATARSALS

1. CARPALS
2. METACARPALS
3. PHALANGES
4. METATARSALS

1. SKULL
2. MAXILLA
3. MANDIBLE

1. CARPALS
2. METACARPALS
3. TARSALS
4. METATARSALS

1. SKULL
2. MAXILLA
3. MANDIBLE

What types of skeleton mostly do metamorphosis?

1. exoskeleton
2. endoskeleton
3. liquid skeleton

What are bones not made of?

1. collagen
2. phosphorus
3. calcium
4. sulfur

What type of skeleton do Octopi have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do we have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do we have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do snakes have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do scorpions have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

Choose the antagonistic pair:

1. radius -ulna
2. biceps-triceps
3. back muscles-abdominal muscles
4. humerus-clavicle

How many bones do adults have in the body?

1. 300
2. 206
3. 150
4. 260