3) Grass Frogs are amphibians. Amphibian means two lives, referring to how amphibians they start their lives in water then move to land (when they are fully developed). They are cold blooded. Other amphibians besides frogs include toads, salamanders, and newts. Grass Frogs belong to the phylum, chordate, often referred to as frogs being chordates.

4) The 5 main characteristics of the phylum chordate are...

• Notochord: a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals.

• A dorsal hollow tubular nerve cord.

• Pharyngeal slits.

• Endostyle/thyroid gland.

• Post-anal tail.

5) The characteristics of amphibians are...

• cold blooded animals, no constant body temperature but they take on the temperature of their environment.

• Moist, scaleless skin, that absorbs water and oxygen. Permeable skin.

• Unshelled eggs.

• Have to be a species of frogs, toads, salamanders and newts.

• Has a three chambered heart and webbed feet.

6) Three things I learned about the frogs system compared to the human are...

1. In the circulatory system the heart is a critical organ, but in frogs and humans the heart looks a little different. A frog's heart only has three chambers, while the human heart has four chambers. The chambers for a frogs heart include two atria and one ventricle. While a humans heart has two atria and two ventricle. Even though the hearts look a little different, they still function relatively the same in the circulatory system.

2. When comparing the frogs digestive system to a humans you can notice a couple of differences. One, a human has a larger large intestine so it can absorb more water. Frogs skin aid in absorbing water so their large intestine does not need to be as big as a humans does.

3. Looking at the reproductive system frogs and humans reproduce in different ways. Frogs lay shell-less eggs and humans, since they are mammals, have live birth. Also, frogs mating process is a lot more difficult than humans, especially for the females. Plus, frogs have a lot more offspring than humans but they have a much lower survival rate.

7) My favorite thing about the dissection was being able to look inside the frogs body and see parts of the system in a smaller model. It was cool to learn about our bodies systems and observe them, by viewing them in a frog. My least favorite thing was the smell and how long it took. The lab would have been must more enjoyable if it did not smell as bad as it did. Also, if it was shorter. It is easy to get sick of something when you do it for a week.

8) I am still curious about the skeletal system in a frog. We only really focused on a couple parts of the skeleton it would have been cooler to see more off the skeleton and how they work individually and together. Especially more of the bones in the skull and spine area and the arms.

Reflection:

The C I used of the 6 C's was collaboration. My partner and I set it up where he would do the dissection and I would do the writing. It was a good way to do this lab and we got a lot done. It was super fun and when we focused we got our work done quickly and efficiently. The C I would want to improve on would be communication. The dissection worked super well when my partner and I talked but when I would tell him the wrong directions or he would not listen it got a little difficult to do. In the future, I would have better communication to make our project better.