Toad and Rat dissection

Topics: Anatomy, Dissection, Difference Pages: 3 (651 words) Published: March 29, 2014
Comparative Anatomy Report
Title: Comparative Anatomy Report
Date: 18th March 2014
Aim/Hypothesis: To compare the anatomy of the cane toad and the rat in order to find the differences of two different animals and how the animal has changed throughout time to suit its living conditions.

Materials and Safety/Ethical considerations:
List materials used in the dissection
Safety and hygiene equipment:
All benches were wiped

1. A rat and a cane toad were dissected to compare their similarities and differences in anatomy structure. 2. Newspaper was laid out under the dissecting trays.
3. The external features of each animal was investigated and notes were collected. 4. The internal features of each animal were investigated and notes were collected. 5. Dissecting materials were placed into a container of Dettol. 6. The rat and toad were wrapped up into the newspaper and discarded in the bin. 7. Tables and aprons were sprayed and wiped down.

Results –
Include your table of observed notes (primary data), any diagrams or photos.

External features
White short hair- keeps the rat warm
Little eyes- Has bad hearing
Whiskers- To help guide the rat from running into things
Long nose- Used to smell poison or other bad foods
Short stubby legs
Long tail- for balance
No fur, moist skin- its environment is always wet
Big eyes on the side of the head- used to see predators
Small nose with hard shell around it
Short strong legs
Internal features
Long small intestine

Short stumpy legs- To scatter quietly
Claws- To open and scratch objects
Short strong legs- to jump
Webbed feet- to swim through water

Insects : maggots, flies and

Discuss the similarities and differences of the anatomy of the rat and the toad. This should include a discussion about size/colour/shape of external and internal features (this section is written using primary and secondary...

Bibliography: Class notes and dissections (please refer to the diary for the correct formatting of these references)
Secondary data sightings
Appendix: if you wish to include internal images from the internet of your animals these would be included as an appendix rather than placed in your result or discussion sections of the report. They would be referred to as Appendix 1, Appendix 2 and be mentioned in your discussion text.
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