Comparison of mammalian digestive systems Activity 2.8 Comparison of mammalian digestive systems Read the notes on each mammal in the Activity manual. Fill in the information about the digestives systems of the dog, cow and honey possum. Think about the type of digestive system the honey possum might have. You can use this template to prepare a response to the Discussion Questions and the Further Activity. Include your answers on the relevant slides. Slides are also included for comparing the stomachs and intestines of each mammal. On the Bibliography slide include the details of any resources you have used. Read the instructions on the following slide before you start.

Instructions for slides The slide templates are pre-formatted for you. Highlight the text you wish to type over. For each slide, type in your information. To insert pictures go to Insert and select Picture, then Clip Art or From File. To show your slides, go to the Slide Show menu and select View Show. Slides have been set to automatically appear. You can change these settings by going to Slide Show and then Slide Transition. No objects on slides have been animated. You can add animations by going to Slide Show and Custom Animations. Press Escape to quit the slide presentation. If you want more slides, go to the Insert menu and select New Slide or Duplicate Slide. After preparing your slides, you should delete the first two instruction slides. You can do this on each slide by going to the Edit menu, and selecting Delete Slide.

Comparison of mammalian digestive systems Insert your own images here. Delete this text box. Presented by <<your name>> Copyright @ Pearson Australia (a division of Pearson Australia Group Pty Ltd)

Dog Diet ... Amount of digestion required Size of stomach Length of small intestine dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Cow Diet ... Amount of digestion required Size of stomach Length of small intestine dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Honey possum Diet ... Amount of digestion required Size of stomach Length of small intestine Fig 3 – Digestive system of honey possum dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Size and shape of stomach (Compare the size and shape of the stomach of the three mammals. Explain the differences in terms of the type of food eaten and the amount of digestion needed. Think carefully about what each of the mammal’s diet consists of. Refer to your information on the slides for each mammal.) dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Length of small intestine (Compare the relative length of the small intestine in the three mammals and attempt to relate differences in length to differences in diet. Refer to your information on the slides for each mammal.) dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Vampire bat Type of food eaten ... Amount of digestion required Size and shape of stomach Length of small intestine dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Vampire bat Compare the relative size and shape of the vampire bat’s digestive system with the other mammals. Compare the relative length of the vampire bat’s small intestine with the other mammals. Which other mammal’s digestive system does it most resemble? dog | cow | possum | stomachs | intestines | vampire bat | comparison | bibliography

Bibliography Enter details for any Internet sites you have used. Enter details for any books, encyclopedias, CD-ROMs etc. you have used. dog | cow | possum| | stomachs | intestines | vampire bat | comparison | bibliography