-oil spill pictures due Tuesday 14
-Biome map due Wednesday 15
Today we learned about population graphs. We watched a video about Lemmings migrating. After we toke notes and watched the video, we worked on Unit Packet pages 35-37 and pages 39-41. We might get tomorrow to work and finish them as well. If you want to watch the video go onto YouTube and type in Lemming Migrate.(I couldn't get the video to load).
Notes:
Community Interactions
Predation-an organism that kills and feeds on another.
Symbiosis- organisms "living together"
-Mutualism-both benefit from one another
Ex: In Finding Nemo, Marlin (the father) and Nemo live a sea anemone. Marlin and Nemo are receiving shelter from the sea anemone, while the sea anemone is eating all the food that is left behind.
-Commensalism-one benefits and the other is not harmed.
Ex: A small insect that lands on the back of an elephant. The insect is protected and has shelter and the elephant can't tell that the insect is there.
-Parasitism-one benefits and the other is harmed.
Ex: Parasites
Growth Curves
If there are to many species in one area, then they will eventually start dieing off.Exponential Growth Curve
"J Curve"
How does a "J curve" happen?
-happen when condition's are ideal
-bacteria does this not, humans
Logistic Growth Curve
"S Curve"
No comments:
Post a Comment