1. By Theo Madura, Frank Musso, and
Doug Brown

2.  In all dissections, specified set of organs found
for each body function
 Including respiratory, digestive, and
reproductive systems.
 Basic organ systems of all organisms were the
same
 Only variation/exception: The fish had a swim
bladder, and gills, other animals did not.

4.  Dissections started off with water life, transitioned to
water life.
 We use the word “transition” because we noticed how
the animal changed depending on its habitat. (Fish and
frog were similar, frog and rat, etc.)
 Fish had no limbs (as arms, legs), was hydrodynamic.
 Frog developed arms and legs, still had webbed feet
and smooth skin to aid with water life. Lungs had
similar appearance and shape to the fish’s gills.
 Rat had better developed structure for land life, toes to
grip things, tail for balance and climbing, etc.
 Pig had further adaptations to support land life as a
large animal.

5. •Scales, no arms/legs, hydrodynamic shape
•Gils for oxygen intake, swim bladder for ballast (only animal
Fish
studied with them)
•Fins
•Seemingly no diaphragm like structure containin heart and lungs
(these organs were not separated from the rest)
Frog
• Smooth Skin
• Very muscular legs and arms for swimming, yet still
allowing land life. Feet and hands are webbed.
• Had a diaphragm, specified area for heart and lungs
•Had separated feet, clawed toes, fur
Rat •Heart and lungs in diaphragm, seperated from other organs
• Body shape, and leg structure adapted for running (land life)
Pig
•No fur, hooves for running
•Same (more or less) internal layout as the rat.
•Had an umbilical cord (because it was a fetal pig)

6.  Dissections became easier as we had more
experience.
 Gloves made the process of dissecting much
more enjoyable.
 We found it to be a fun project, and a good
experience