Thursday 8 December 2011

Learning Blog: Identifying Worms

Today we grouped five different worms into the phylum and class in which they belong.
there was the human book worm,earthworm,roundworm,tapeworm,and amphioxus. I learnt that they all belong to different phylum's.

Worm
Phylum
Class
Characteristics
Hookworm
Nemathelminthes
Acanthocephala
  Brown, long, thin, stringy
Earthworm
Annelida
Clitellata
pink, round, lots of lines
Roundworm
Nematoda
Echinoidea
thin, white, looks like tapeworm  
Tapeworm
Platyhelminthes
Cestoda
resembles tape, white, flat
Amphioxus
Cephalochordata
Branchiostoma
short, pink/brown, tail like

Amphioxus are a little different than the other worms because The characteristics of Cephalochorda are that they are marine animals, segmented, and they elongated bodies with a notochoord that extends the length of the body and cirri surrounding the mouth for collecting food.
  Some other animals that belong to the phylum Cephalochorda are animals such as tiny fish.


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