By Ana Abadía and Toño Almudí
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By Ana Abadía and Toño Almudí
There are a lot of invertebrate animals,but we are not going to study all of them.
Invertebrate animals haven’t got a backbone.
Invertebrate animals do not have a spinal column.
Invertebrates don’t have an internal skeleton.
What are invertebrates?
All invertebrate animals are oviparous.
What are invertebrates?
Do you remember…
What vertebrate animals are born from eggs?
Birds Reptiles FishAmphibians
They live in many different places and can be
herbivores, carnivores or omnivores.
What are invertebrates?
Do you remember…
What do animals eat?
Herbivores eat plants.
Cows, rabbits and elephants.
Carnivores eat meat from other animals.
Lions, eagles, and sharks.
Omnivores eat plants and meat.
Bears and pigs.
Invertebrate animals haven’t got a backbone.
All invertebrate animals are oviparous.
They live in many different places and can be
herbivores, carnivores or omnivores.
What are invertebrates?
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
STARFISHSPONGES
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
JELLYFISH
They don’t have a backbone.They are oviparous.Jellyfish are invertebratesThey live in the sea.They have tentacles that sting.They float with the sea and use propulsion.
JELLYFISH
Bell
Mouth
Tentacles
JELLYFISH
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
ANNELIDS(WORMS)
They don’t have a backbone.They are oviparous.Have a body divided into segments.They don’t have legs.They are long and soft.Mos of them live on land others live in the sea.Tapeworms live inside the human body.
ANNELIDS(WORMS)
MouthBumpREPRODUCTIVE SYSTEM
Anus
ANNELIDS(WORMS)
EARTHWORMS
ANNELIDS(WORMS)
TAPEWORM
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
MOLLUSCS
They don’t have a backbone.They are oviparous.Molluscs have soft bodies.Most of them have hard shells.
MOLLUSCS
MOLLUSCS
MOLLUSCSwith SHELL
snail
clam
scallop
mussels
MOLLUSCSwithout shelloctopus
slug
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
GROUPS OF INVERTEBRATES
ARTHROPODS
INSECTS
ARACHNIDS (SPIDERS)
CRUSTACEANS (CRABS)
MYRIAPODS
6 legs
More than 6 legs2 antennae
4 antennae
Withantennae
No antennae
GROUPS OF INVERTEBRATES
ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
They don’t have a backbone.They are oviparous.They don’t have antennae.They have a hard skin.They spin webs to trap insects.They eat the insects that they catch in their webs.
GROUPS OF INVERTEBRATES
ARTHROPODS
AR
AC
HN
IDS
(SP
IDER
S)
GROUPS OF INVERTEBRATES
ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
They don’t have a backbone.They are oviparous.They have 4 antennae.They have an exoskeletonThey have joints and can bend theirlegs.
GROUPS OF INVERTEBRATES
ARTHROPODS
CR
UST
AC
EAN
S (C
RA
BS)
GROUPS OF INVERTEBRATES
ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
They don’t have a backbone.They are oviparous.They have 2 antennae.They have 6 legs.Their body have 3 parts: head, thoraxand abdomen.
GROUPS OF INVERTEBRATES
ARTHROPODS
INSE
CTS
GROUPS OF INVERTEBRATES
ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
They don’t have a backbone.They are oviparous.They have 2 antennae.They have more than 6 legs.
GROUPS OF INVERTEBRATES
ARTHROPODS
INSECTS
ARACHNIDS (SPIDERS)
CRUSTACEANS (CRABS)
MYRIAPODS
6 legs
More than 6 legs2 antennae
4 antennaeWith
antennae
No antennae
Copy and complete the sentences….
- Invertebrates do not have a ………..- An ................ is an annelid.- ……………….. have a shell.- Arthropods have an …………………….- Insects have six ………………- All arthropods are …………………..
GROUPS OF INVERTEBRATES
JELLYFISH ANNELIDS(WORMS)
MOLLUSCS ARTHROPODS
INSE
CTS
AR
AC
HN
IDS
(SP
IDER
S)
CR
UST
AC
EAN
S (C
RA
BS)
MYR
IAP
OD
S
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