Lab Exercise 18 - Animal Diversity 2

This page last updated May 20, 2005

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In this lab, we did exercise 18.1, 18.2A and B, 18.3A.

If you are asked to find a particular structure on a prepared slide or on the animal that you are dissecting, on the practical you are expected to be able to

  1. Identify this structure
  2. Provide at least one function for the structure
  3. You should also be able to identify the organism, the phylum to which it belongs, its sex (where appropriate), and supply the appropriate categories to describe the organism from table 18.1 in your lab manual (pp 486-487).  Table 18.2 is a useful study guide as well.

 

Phylum Mollusca
This is an octopus embedded in lucite.
This is a squid embedded in lucite.
This is a freshwater mussel embedded in lucite
This is a picture of one of the clams we dissected in lab.  Click on the picture for a larger version.  You should be able to identify the structures listed on your lab handout.

Phylum Arthropoda
 
This is a picture of the dissected crayfish in the plastic box.  Click on the picture for a larger version.
This shows a portion of a dissected crayfish.  Click on the picture for a larger image.
This shows the crayfish tail with the muscle scraped away to expose the intestine.  Click on the picture for a larger, labeled version.
This picture shows various insects embedded in lucite.
This picture shows a female (top) and male grasshopper for comparison.  Notice the distinctive structure of the ovipositor on the female's abdomen.  Click on the picture for a larger version.C

Phylum Chordata
This picture shows the labeled amphioxus (lancelet) in the plastic box.

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