Evidence of work

1. What did you do?

For our frog dissection lab we worked with partners to investigate and answer questions about the internal and external anatomy of a frog. We had to work together through eleven parts of the lab, investigating the internal and external anatomy, and eight of its body systems. While doing this we also compared the anatomy of a frog to that of a human's.

2. What systems did you investigate?

In our frog dissection we investigated the skeletal, muscular, circulatory, respiratory, digestive, reproductive, excretory, and nervous systems of the frogs body.

3. What is the Phylum and Class the frog belongs to?

The frog belongs to the phylum Chordata, and the Amphibian class.

4. What are the characteristics of the Phylum?

The characteristics which classify an animal in the phylum Chordata are a notochord, a dorsal hollow nerve cord, pharyngeal gill slits, and a post-anal tail.

5. What are the characteristics of the Class?

The characteristics which classify an animal in the Amphibian class are, being cold-blooded, and also having a skin that is moist and smooth, which can take in oxygen and water.

6. 3 things I learned about how the frog body systems compare to humans:

• Frogs have three lobes for their liver while humans have four lobes for their livers.
• A human heart has four chambers including the two atria and the two ventricles, while frogs' hearts only have three chambers including one large ventricle and two atria.
• Unlike humans, frogs reproduce externally where the male forces the eggs out of the female and then fertilizes them.

Reflection

7. Favorite part about dissection:

My favorite part about dissection was investigating the difference in how the internal anatomy of a frog is organized differently than a human because of their different lifestyles and body needs.

Least favorite part about dissection:

My least part of the dissection was the smell of the formaldehyde that is used to preserve the frog.

8. What else do you want to know or are still curious about?

I am still curious about how a frog can absorb oxygen through its skin and I would want to further study that.

9. During our frog dissection project, I believe that I communicated very well with my partner. We were able to express our thoughts and ideas to each other very easily and got through the first part of the dissection fairly easily. Unfortunately my partner did not finish the dissection with me because the smell of the formaldehyde made him too sick. Due to this reason one of the 6 C's we could have improved on was our conscientious learning because we could have managed our time more effectively. If we had been able to answer questions while doing the dissection we could have finished faster.