Y una increíble descripción
ANIMALES INVERTEBRADOS
Invertebrate animals
INDEX
INTRODUCTION
INVERTEBRATE
SPONGES
COHELENTERATES
WORMS
ECHINODERMS
MOLLUSCS
SCHEME
ARTHROPODS
CLASSIFICATION
ACTIVITY 2
ACTIVITY 1
INDEX
INTRODUCCTION
There are so many different animals that in order to study them, they must be classified, that means. grouped according to their common characteristics. To make the main classification we take an important characteristic, the backbone. Animals can be divided into two groups. - Vertebrate that HAVE backbone.- Invertebrate, do not have backbone.
INCEX
INVERTEBRATE
Invertebrates form the largest group of animals.
- Invertebrates lack a backbone and a jointed internal skeleton.
- Most invertebrates have external protection, like armour (beetles), but there are invertebrates that have no protection at all (octopuses).
- They are oviparous, (they hatch from eggs.)
The group of invertebrate animals is divided into 6 other subgroups: sponges, echinoderms, coelenterates, worms,arthropods, and molluscs.
INDEX
SPONGES
- They have the appearance of a plant but are quite simple animals.
- They are sac-shaped, with one upper hole and many lateral holes.
- Their body is irregular, without symmetry.
- They live fixed to the bottom of the sea.
- The best known is the bath sponge.
INDEX
ECHINODERMS
- - They live on the seabed and crawl slowly thanks to very thin tentacles on their underside.
- - Their body is radially symmetrical (like the spokes of a wheel).
- Their mouth is in the centre (at the bottom) and their anus (at the top).
- They have mineral (hard) plates under their skin.
- Some, like sea urchin, have movable spikes.
SEA URCHIN AND STARFISH ( LIKE PATRICIO! )
INDEX
COHELENTERATES
- - They are aquatic and marine animals.
- - Most of them are characterised by their sac-like shape, with a central cavity and a single opening, mouth, and anus at the same time, surrounded by tentacles.
- - They have a soft body.
- - They usually have tentacles with poisonous darts, like jellyfish.
- - Some live attached to rocks (POLYPS and corals) and others are mobile (JELLYFISH).
INDEX
WORMS
- Their skin is always moist.
- They have no legs.
- They are soft-bodied.
- They have an axis of symmetry.
- Some are cylindrical and some are flattened.
- There are aquatic and terrestrial.
- Many worms are parasitic.
INDEX
ARTHROPODS
- The main characteristic is the articulated carapace that runs the length of their body (which functions as a skeleton).
- They have highly developed sense organs.
- They have jointed legs.
- Their bodies are divided into several parts or segments (head, thorax, and abdomen).
- Arthropods are divided into 4 groups: insects, arachnids, myriapods and crustaceans.
INFO
GRUPOS DE ARTRÓPODOS
INDEX
INSECTS
ARACHNIDS
They live on land, except for some that live in fresh water. They form the most numerous groups of arthropods. They are characterised by their 6 legs (butterflies, grasshoppers, flies, beetles...).
They live on land. Arachnids are carnivores and rid us of insects such as flies and mosquitoes. They have 8 legs (spiders, ticks and scorpions are arachnids).
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CRUSTACEANS
MYRIAPODS
Almost all of them live in the sea. Their skeleton has a mineral substance that hardens it. They have 10 legs (lobsters, crabs, barnacles, shrimps...). They have antennae.
They are all terrestrial and live under rocks. They feed on insects and other small animals. They are characterised by a segmented body and many legs (centipedes and millipedes). They have antennae and more than 10 legs...
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INDEX
MOLLUSC
- The main characteristic is that they have a soft body and they are covered by a moist skin, most have a hard outer covering called a shell.
- Most have a hard outer shell called a conch.
- Almost all molluscs live in water, except for snails and slugs.
- They have no legs.
- Molluscs are divided into 3 groups: cephalopods, bivalves, and gastropods.
INFO
TYPES OF MOLLUSC
INDEX
CEPHALOPODS
They are marine animals. They have tentacles around their mouths. Some, such as squid and cuttlefish, have an inner shell.
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BIVALVES
They are marine animals. They have an outer shell made up of two parts called valves.
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GASTROPODS
They can be terrestrial or marine animals, and some have shells. Their eyes are located at the end of extensions called tentacles.
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ANIMALS 4º E. PRIMARIA - INVERTEBRATES
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Y una increíble descripción
ANIMALES INVERTEBRADOS
Invertebrate animals
INDEX
INTRODUCTION
INVERTEBRATE
SPONGES
COHELENTERATES
WORMS
ECHINODERMS
MOLLUSCS
SCHEME
ARTHROPODS
CLASSIFICATION
ACTIVITY 2
ACTIVITY 1
INDEX
INTRODUCCTION
There are so many different animals that in order to study them, they must be classified, that means. grouped according to their common characteristics. To make the main classification we take an important characteristic, the backbone. Animals can be divided into two groups. - Vertebrate that HAVE backbone.- Invertebrate, do not have backbone.
INCEX
INVERTEBRATE
Invertebrates form the largest group of animals. - Invertebrates lack a backbone and a jointed internal skeleton. - Most invertebrates have external protection, like armour (beetles), but there are invertebrates that have no protection at all (octopuses). - They are oviparous, (they hatch from eggs.) The group of invertebrate animals is divided into 6 other subgroups: sponges, echinoderms, coelenterates, worms,arthropods, and molluscs.
INDEX
SPONGES
INDEX
ECHINODERMS
- - They live on the seabed and crawl slowly thanks to very thin tentacles on their underside.
- - Their body is radially symmetrical (like the spokes of a wheel).
- Their mouth is in the centre (at the bottom) and their anus (at the top).
- They have mineral (hard) plates under their skin.
- Some, like sea urchin, have movable spikes.
SEA URCHIN AND STARFISH ( LIKE PATRICIO! )INDEX
COHELENTERATES
INDEX
WORMS
INDEX
ARTHROPODS
INFO
GRUPOS DE ARTRÓPODOS
INDEX
INSECTS
ARACHNIDS
They live on land, except for some that live in fresh water. They form the most numerous groups of arthropods. They are characterised by their 6 legs (butterflies, grasshoppers, flies, beetles...).
They live on land. Arachnids are carnivores and rid us of insects such as flies and mosquitoes. They have 8 legs (spiders, ticks and scorpions are arachnids).
" Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat"
" Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat"
CLICK
CLICK
CRUSTACEANS
MYRIAPODS
Almost all of them live in the sea. Their skeleton has a mineral substance that hardens it. They have 10 legs (lobsters, crabs, barnacles, shrimps...). They have antennae.
They are all terrestrial and live under rocks. They feed on insects and other small animals. They are characterised by a segmented body and many legs (centipedes and millipedes). They have antennae and more than 10 legs...
Nombre del autor
Nombre del autor
CLICK
CLICK
INDEX
MOLLUSC
INFO
TYPES OF MOLLUSC
INDEX
CEPHALOPODS
They are marine animals. They have tentacles around their mouths. Some, such as squid and cuttlefish, have an inner shell.
CLICK
BIVALVES
They are marine animals. They have an outer shell made up of two parts called valves.
CLICK
GASTROPODS
They can be terrestrial or marine animals, and some have shells. Their eyes are located at the end of extensions called tentacles.
CLICK