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THEINVERTEBRATES
The main characteris of invertebrates is that they haven´t got aspinal colum or an internal skeleton.
Invertebrates have got different body coverings: Some invertebrates, like crabs and oysters,have got a  hard shell to pro...
Main grops of invertebrates. Mollusk have got a hard shell. Jellyfish and polyps have got long tentacles. Sponges have ...
Arhtropods Insects have got six legs.Three main parts  head, thorax and abdomen. Arachnids have got eight legs.Two main ...
Mollusks Bivalves:Hva got a shell with two parts called  valves. Gastropods:Have got spiral shell.Other gastropos  haven...
FinishBy Alvaro ESPERO QUE OS HAYA GUSTADO. SALUDOS ALVARO.
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Invertebrates alvaro

  1. 1. THEINVERTEBRATES
  2. 2. The main characteris of invertebrates is that they haven´t got aspinal colum or an internal skeleton.
  3. 3. Invertebrates have got different body coverings: Some invertebrates, like crabs and oysters,have got a hard shell to protect themselves. Other invertebrates, like ants and beetles, have got a rigid covering called an exoskeleton. Some invertebrates, like worms, have got a soft body withouth protection.
  4. 4. Main grops of invertebrates. Mollusk have got a hard shell. Jellyfish and polyps have got long tentacles. Sponges have got soft body with holes called pores. Echinoderms are covered with sarp spikes. Arthropods have got exoskeleton and jointed legs. Annelids: They´ve got logn, soft body that is divided into rings.
  5. 5. Arhtropods Insects have got six legs.Three main parts head, thorax and abdomen. Arachnids have got eight legs.Two main parts cephalothorax and abdomen.Crustaceans have got ten legs.Two main parts cephalothorax and abdomen.Myriapods have got many legs and two main parts the head and the trunk.
  6. 6. Mollusks Bivalves:Hva got a shell with two parts called valves. Gastropods:Have got spiral shell.Other gastropos haven´t got spiral shell. Cephalopods:Have got a long arms to catch their food.
  7. 7. FinishBy Alvaro ESPERO QUE OS HAYA GUSTADO. SALUDOS ALVARO.

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