Thursday, February 17, 2011

Happy Wednesday!!

Today we started class with our third animal of the day. It was called an Axolotl. Its in the class amphibia. What makes this animal different from a lot of other animals is that it does not go through metamorphosis.Next we looked at an evolunary tree. This shows organisms and how long ago they had a common ancestor.
We learned about radial and bilateral symmetry
bilateral symmetry - is when a single imaginary plane divides the body into left and right sides that are mirror images of each other.
radial symmetry - is when any number of imaginary planes drawn through the center of the body could divide it into equal halves.

Homework: Green chart due friday! (use DOT pages 30-45 in the back of the book)
read sections 26.1 and 26.2 don't forget profile due feb. 22 and t.v. add due feb. 28

LAD THURSDAY!!!

Today we worked on two labs one on pages 19 through 27 and the other one starts on page 14
on page 14 we have to identify the different animals in the different jars. All you have to do is look at the key on page 13 in the unit packet and figure out which phylum each organism is in. The second lab we went around to 8 different stations and answer the questions. some of the answers will be in our biology book and some answers will be in the book from last year. we also got to see a live centipede and learned the differences between a centipede and a millipede. Another interesting thing we experienced today was hearing a cockroach hiss.

homework: finish the two labs pages 14 and 19-27 due on tuesday
Green chart due tomorrow
profile due feb. 22
t.v. add due feb. 28

the next scribe is Andjela


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