Objectives of a Fish Dissection

This lab was conducted with the purpose of confirming the trait of homeostasis among goldfish. During the experiment, it was recorded that the fish would increase gill movement when placed in colder water two out of the three trials. However, the results showed no significant difference in gill movement in various temperatures of water. This has very little effect on the broad field of science since our only three trials were performed and may have included human error in the trials.

The materials that were used/needed in this experiment were a penny, water, soap, rubbing alcohol, a pipet, and a beaker.

Background knowledge demands: For this book, students must know what fish and scales are. They will also need to know that fish live under the sea.

Preparing specimen for electron microscope hard, light microscope still very useful as a window on living cells.

3b. Body less than five times as long as broad; front edge of dorsal fin about midway

The cat dissection is the culminating component of this course because it solidifies our knowledge of anatomy and physiology by applying it to a tangible specimen. Mammalian dissection provides an experience that two dimensional diagrams are incapable of and serves as an indicator of whether entering a profession that involves the application of anatomy and physiology is suitable for students in this course. The cat dissection builds on the previous dissections of the fetal pigs and other individual structures throughout the year by applying them to a cat that shares similar well-developed organs and muscles found in human anatomy. I found value in recognizing the similarities and differences not only between human and cat anatomies, but also

Cutting through the mink to study its anatomy helps the group to realize that they are similar to human. The most important tools used in the lab are scissor, probe, pins, tweezer, and scapula. The most tool being used is scapula which is used to cut up the mink and skin it. Safety materials are required in the lab in order to avoid accident. Since the minks contain cancerous chemicals on them, the classes are required to wear safety goggles, apron, and gloves. The class started the dissection from May 18th to May 27th in third period of Anatomy class.

The procedure for this experiment followed the steps as shown in the flow chart (Figure 1) and will be expanded upon here. The oxygen-measuring probe in the test chamber was first turned on and required 10 minutes to warm up. During this time, two empty containers had 200mL of fish water added to them and then each was weighed using a scale that was tared to zero before use. Two pairs of goldfish were then collected from the large tank #1 in the lab room using the fish net provided, and one pair was placed in each container. Then, the containers were reweighed separately and the original weights were subtracted from the new weights in order to determine each pair of goldfish’s weight. Two trials were conducted and in each trial, each goldfish pair was subjected to two conditions, first a control condition where no factors were introduced, followed by an experimental condition where they were exposed

According to the list of materials, the instruments that will be used in this dissection are scissors, dissecting pins, a scalpel, a dissecting tray, a probe, forceps, dissecting needles, and a cord.

The first time I felt the recoil of a shotgun coincide with the simultaneous drop and flop of a turkey I knew I was hooked. This was all the way back in the fall of 2005 when I shot my very first turkey alongside my father. That day started an addiction that has since intensified and spread to not only turkeys but almost all of Missouri's highly sought after species. Hunting, conservation, and the great outdoors have always been embedded in the hearts of my family. I am no different and plan to dedicate my life to Missouri’s wildlife the same way they have.

The materials needed for this lab were: a light microscope, lamp (if needed or available), microscope slide, coverslip, tweezers, preserved insect leg (or a parakeet’s

For the initial set-up of the experiment, two plastic beakers, each containing approximately 200mL of fish water, were individually weighed and recorded. The selected model organism for the experiment was the Carassius auratus, most commonly known as the goldfish. Each beaker was then filled with two pairs of evenly-sized goldfish and reweighed. These weights were then subtracted by the previously recorded weights to provide an approximation of the combined weights of each paired goldfishes. An oxygen chamber with a built-in probe was then filled with 200mL of fish water. The first pair of goldfish was added, along with the 200mL of fish

The chest organs, including the heart and lungs, are inspected. After any organ is removed, the pathologist will save a section in preservative solution. The pathologist takes blood from the heart to check for bacteria in the blood. For this, he uses a very large hypodermic needle and syringe. He may also find something else that will need to be sent to the microbiology lab to search for infection. The pathologist will send blood, urine, bile, or even the fluid of the eye for chemical study and to look for medicine, street drugs, alcohols, and/or poisons. After the chest has been examine the abdominal cavity is inspected, the first dissection in the abdomen is usually freeing up the large intestine. Some pathologist do this with a scalpel, while others use scissors. Freeing up the intestines takes some time. The intestines and other organs in the abdominal cavity are taken out an examine for any abnormalities, drugs, poisons, and diseases . Once the chest and the abdominal cavity is examine , the scalp is examine, the skull vault is opened using two saw cuts, one in front and one in back. The top of the skull is removed and the brain is very carefully cut free of its attachments from inside the skull, inspecting the brain often revels surprises. a good pathologist takes some time to do this as well with the other organs.

Description of Experiment:In this experiment to test the effect of colder temperatures on goldfish respiration rate.We started with a beaker

The materials used for the first part of the experiment comprised of the following: a microscope, 4 slides, 4 slide covers, blood samples, lancet, a sheet of paper towel, 3 test tube droppers, Solutions A, Solutions B, and Solution C.