Monday, September 13, 2010

Happy Monday!

Agenda:
1. TLC Visitor
2. Star/Wish
3. Notes: Symbiosis, Growth Curves
4. Begin UP 35-41 Graphs

Today at the beginning of class, we had a visitor from the TLC come visit us. He's the one you can go to if you need help in Biology. He deeply encouraged us to get to the TLC as soon as we have trouble. Not only does he have a degree in Biology, he says the student tutors are even more helpful because they have taken this course before. They know what it's like to be in this class. Get in there today!

Next we gave our stars and our wishes to our last scribe, Josh.

Then we took notes on what we read about last night. The big study was about symbiosis and growth curves.
1. Symbiosis- organisms living together. "Sym" means together, and we know "bio" means life. So that's how we get the name, symbiosis.
2. Niche- physical and biological conditions of an organism.
- Role in food chain
- Where the organism lives.
3. Factors affecting population growth:
-Births/ deaths
-Immigration/ emigration
4. Population Density- number of individuals per unit area.

For the graphs we learned about two types of graphs, exponential and logistic graph.
1. The first graph was a exponential growth graph. Or a J-shape. This graph shows growth under ideal, or perfect, conditions. It shows a rapid increase in population.

2. The other graph is a logistic graph. Or a S-shape. In this one, growth stops or slows after a period of rapid growth.

- Carrying capacity is the number of individuals an evironment can support.
- Popultion levels off

The rest of class we worked on our homework which was in the UP 35-41.

Homework:
- UP 35-41 due Tuesday
- 10 pictures on oil spill due Tuesday
- BLUE Anticipation Guide on 5.1 and 5.2 due Wednesday

Our next scribe will be Patrick.

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