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invertebrates 4th

Teacher Maite

Created on March 15, 2021

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Transcript

Invertebrate animals

4th grade (unit 4)

Invertebrate animals

They share one characteristic: they do not have backbone. We can classify them in:

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Invertebrate animals

Worms

Equinoderms

Cnidarians

Molluscs

Arthropods

Sponges

Cnidarians

CHARACTERISTICS:

  • Jelly-like bodies.
  • Poisonous tentacles.

Examples:

  • Jellyfish.

Return

Sponges

Examples:

CHARACTERISTICS:

  • Sponges.
  • Aquatic.
  • They live attached to rocks.
  • They cannot move.
  • Sack-like bodies.
  • Pores.

Return

Worms

CHARACTERISTICS:

Return

  • Long, soft bodies.
  • They haven't got legs.

Examples:

  • Fireworms
  • Roundworms
  • Earthworms

Molluscs

Examples:

CHARACTERISTICS:

Return

  • Bivalves: Claims
  • Soft bodies.
  • 1 or 2 shells.
  • Oviparous.
  • Larvae different from adults.
  • Snails
  • Slug

Equinoderns

Examples:

CHARACTERISTICS:

Return

  • Starfish
  • Skeleton made of hard plates, often with spines.
  • Marine
  • Sea urchins

Arthropods

Examples:

CHARACTERISTICS:

Return

  • Wasp
  • Arculated exoskeleton.
  • Legs and segmented body.
  • Spider