3.4 Worms

3.4 Worms
characteristics of worms
3-types of worms
food intake by worms
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Slide 1: Diapositive
BiologieMiddelbare schoolhavo, vwoLeerjaar 1

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3.4 Worms
characteristics of worms
3-types of worms
food intake by worms

Slide 1 - Diapositive

How do we call animals without an endo- or exoskeleton?

Slide 2 - Question ouverte

INVERTEBRATES
ARTHROPODS
VERTEBRATES
Sponges
Molluscs
Worms
Reptiles
Mammals
Cnidarians
Crustaceans
Arachnids
Insects
Myriapods
Echinoderms
Fish
Birds
Amphibians

Slide 3 - Question de remorquage

What is meant by the term 'fragmentation'?

Slide 4 - Question ouverte

What type of symmetry is this? 
RADIAL SYMMETRY / BILATERAL SYMMETRY / NO SYMMETRY

Slide 5 - Diapositive

An animal that eats other animals is called a ...

Slide 6 - Question ouverte

A special relationship between two organisms of different species in a long-term interaction is called ...

Slide 7 - Question ouverte

Which of the following statements about SPONGES is NOT correct?
A
Sponges are attached to rocks or corals
B
Some sponges feel like rubber
C
Sponges eat by filtering water
D
Sponges can only reproduce asexually

Slide 8 - Quiz

Which of the following statements about CNIDARIA is NOT correct?
A
Cnidaria are always attached to rocks or corals
B
Many cnidaria are predators that eat prey
C
Cnidaria have tentacles with stinging structures
D
Anemones are examples of cnidaria

Slide 9 - Quiz

The organism on the picture is a(n) ...
A
sponge
B
polyp
C
cnidarian
D
anemone

Slide 10 - Quiz

The organism on the picture is a(n) ...
A
sponge
B
polyp
C
cnidarian
D
anemone

Slide 11 - Quiz

The organism on the picture is a(n) ...
A
sponge
B
polyp
C
cnidarian
D
anemone

Slide 12 - Quiz

The organism on the picture is a(n) ...
A
sponge
B
polyp
C
cnidarian
D
anemone

Slide 13 - Quiz

3.4 Worms
characteristics of worms
3-types of worms
food intake by worms

Slide 14 - Diapositive

Worms
tweezijdige symetrisch

geen skelet

lichaam is lang en dun

Slide 15 - Diapositive

Worms
  • long and thin bodies
  • no skelet
  • mostly bilateral symmetric

Slide 16 - Diapositive

3-types of worms

Slide 17 - Diapositive

segmented worms

Slide 18 - Diapositive

What do you think about when you hear the word 'parasite'?

Slide 19 - Carte mentale

roundworms
  • some are parasites
  • roundworm infection 
  • live in soil (contaminated faeces = poo)

Slide 20 - Diapositive

Slide 21 - Diapositive

FLATWORMS
page 64
  • Invertebrate animals with a liquid skeleton.
  • They have a flattened body with a mouth at one end. 
  • Some live in fresh water, but most are parasites of animals, such as a human tapeworm.
Vertebrate or Invertebrate? Type of skeleton?
Specific for flatworms?

Slide 22 - Diapositive

FLATWORMS
SEGMENTED WORMS
ROUNDWORMS
Most simple body plan
Live in water
Absorb nutrients through their skin
Live in soil and poo
Have a smooth & round body
Also called ringworm
Some are parasitic
Live in and eat soil
Their body is made up of ring-like structures
Some are parasitic

Slide 23 - Question de remorquage

WORK ON THE LEARNING GOALS FOR 3.4 'WORMS'

Make a SIF & PIF
Make flashcards
Make a mindmap 
Make a summary
Make a quiz to test yourself

Slide 24 - Diapositive

Worms (Wormen)
  • Flatworm: long flat body, one opening, live in water
  • Roundworm: long threadlike body, live in soil
  • segmented worms: long body with segments, live in the sea or soil.

Flatworms and roundworms can be parasites.

Slide 25 - Diapositive