Typical questions that you should be able to answer about the images on this page:

Note that all three cross sections are from one organism.

1) Which of the major animal phyla reviewed in lab does this specimen belong to ?

2) Is this a coelomate, pseudocoelomate or an acoelomate?

3) Which section do you think is most anterior?

4) Can you locate blood vessels or does it have an open circulatory system?

5) Is it a male, female or hemaphrodite?

Scale of images:

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~ 5mm