Tuesday, February 15, 2011

Scribepost - February 15, Richard P.




Announcements: Extra credit not added to grades yet - it skews the grades quite a bit. Will be added later.

Homework: UP Pages 7-8, Finish lab on UP Pages 9 - 12 (You don't need to do last 2 problems on page 12), Read Section 26.1 (about invertebrates), and the T.V Ad, which is due February 28.

Body: First in class, we got a grade print out with our evolution test on it. The extra credit was left off due to the fact that it skewed the grades.

Next, we learned the 2nd animal of the day - the star nosed mole. it's class is mammalia.
Here is the video we watched on the Star Nosed Mole:
http://www.youtube.com/watch?v=UcDNGmHiddc

After that, we took our notes packet out to take some notes on the Three Domain System. Here are the notes we took:
- Larger, more inclusive than kingdom.

- Relatively new addition

- Based on comparing rNA subunits

Domain System #1: Bacteria
- Unicellular, prokaryotic, corresponds to kingdom Eubacteria.

Domain System #2: Archaea
- Unicellular, prokaryotic, corresponds to kingdom Archaebacteria

Domain System #3: Eukaraya
- Consists of all organisms that have a nucleus.

After the notes, we then completed UP Page 5 as a class. the Page was about classification keys. For those who don't know what a classification key is, here is a definition: When biologists find life forms that they can't identify, they use a classification key that aids identification. it is a kind of road map that a person can use to find the scientific name of an organism.

Anyways, on page 5, there were 8 pictures. You used the classification key to match them up with their names (which weren't scientific). The last one we identified was a narwhal, which Mr. Paek also said was going to be an Animal of the Day in the future. For when it is the Animal of the Day, might I recommend this video to show, since you always show videos for Animal of the Day?
http://www.youtube.com/watch?v=ykwqXuMPsoc

after that, we found out our homework, and spent the rest of class on the lab. The lab was a classification key (also called a biological key in the lab) involving sharks. We used different diagrams and the key to match them up, and then answer questions about them later. Mr. Paek handed out M n M's during the class, which were very tasty.

After that, the bell rang, and we all had to leave for period 5.

Since you need two pictures in your scribe post (I think), here is a picture of Hilary Clinton:Now isn't that just lovely?

BTW, next scribepost is Jake.

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