The perch was a very fun dissection. Throughout the dissection, it was easy to observe that the perch was much more complex than almost all the other creatures we dissected. The perch had specialized organs, which almost looked similar to our own organs. The perch had a complete digestive system full of organs, such as a mouth (with teeth and a tongue), an esophagus, a stomach, a liver, a pancreas, an intestine, and the anus.
Ecology:
Perch interact with the environment in many different ways. They eat many things and are eaten by many other things. The perch also had other organs used for various different functions, such as the gall bladder (which it uses to raise and lower itself in the water), a heart, and some gonads, along with other smaller organs. It also had a full skeletal system. This skeletal system helps to keep the fish from collapsing in on itself under the immense pressure of the water that it swims around in. Last but certainly not least, the perch has a super efficient system of movement. They have 7 different fins, which, in conjunction with the gall bladder mentioned earlier, allows it to skillfully maneuver in the water.