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Question: Classification of Invertebrates
New Page entitled The Invertebrate Kingdom

The Invertebrate Kingdom Like with the Vertebrates we can group Invertebrates, animals without backbones, into different groups depending on their key characteristics. In the following we will look at each group, the characteristics of that group and some of its members.


New Page entitled Cnidrian Family

Cnidaria Cnidrians have the following characteristics: 1. Jelly-like Bodies 2. Tentacles 3. Hollow Bodied


New Page entitled Images of Jellyfish


New Page entitled Images of Jellyfish


New Page entitled Flatworm Family

Flatworms Flatworms have no body segments and are flattened in shape.


New Page entitled Image of Flatworm


New Page entitled Image of Flatworm


Question: Having watched the video how would you describe how a flatworm moves?

True Worms True worms have cylindrical (round) bodies that are segmented (divided into parts).

Molluscs To be a mollusc you need to have a soft body, a muscular foot and many will also have a shell.

The final group is the Arthropods. This group we divided into four families: Insects Arachnids Crustacea Myriapods

Insects Insects have 6 legs and three body parts.

Arachnids Arachnids have 8 legs and 2 body parts.

Crustacea Most crustacea have gills and antennae.

Myriapods Myriapods have many segments to their body and have at least one pair of legs to each segment.


Question: The bee is part of the Arthropod group. Which subgroup does it belong to?


Question: Which of the following groups does the spider belong to?


Question: How many segments to its body does a flatworm have?


Question: The Sea Anemone belongs to which group