Monday, September 26, 2011
1-2 Section Assessment - Spontaneous Generation
Key Concept
1. A controlled experiment is when you have some of whatever you're studying that you don't change, so you can compare the results to what you DO change. Which is what he did with the meat.
2. A theory is something you have tested over and over multiple times. A hypothesis is something that you don't need to test, its just something to start with.
3. Usually they do experiments and publish their finding in some sort of journal for scientists.
4. He put a piece of meat in the flask and covered it with mesh to see if flies grew from inside the meat and another flask and he noticed that flies planted there eggs on top of the meat and did not come from inside the meat like it came from no where.
Critical Thinking - Making Judgements
5. Pasteur became confused by the discovery of the chemist Eilhardt Mitscherlich. This guy had shown that tartrates and paratartrates behaved differently toward polarized light. Tartrates rotated the plane of polarized light, whereas paratartrates did not.
1. A controlled experiment is when you have some of whatever you're studying that you don't change, so you can compare the results to what you DO change. Which is what he did with the meat.
2. A theory is something you have tested over and over multiple times. A hypothesis is something that you don't need to test, its just something to start with.
3. Usually they do experiments and publish their finding in some sort of journal for scientists.
4. He put a piece of meat in the flask and covered it with mesh to see if flies grew from inside the meat and another flask and he noticed that flies planted there eggs on top of the meat and did not come from inside the meat like it came from no where.
Critical Thinking - Making Judgements
5. Pasteur became confused by the discovery of the chemist Eilhardt Mitscherlich. This guy had shown that tartrates and paratartrates behaved differently toward polarized light. Tartrates rotated the plane of polarized light, whereas paratartrates did not.
Ecology Relationships
Abiotic factors such as water effect the biotic factors such as humans and plants because living things need abiotic factors to live. So we are dependent on abiotic factors. Also, abiotic factors can kill us, like natural disasters and stuff like that. Abiotic factors don't need biotic factors to continue on. We are just dependent on them, without them we wouldn't have anything.
Food Chain Ecosystem
One Particular interesting food chain ecosystem I found was a forest. First there's grass, a grasshopper eats the grass. Next the toad eats the grasshopper. After that the snake feeds on the toad. Then finally the hawk gets the best of the snake. Then bacteria of decay takes place. This chain happens over and over time and time again. Without certain animals in the forest others wouldn't be able to live. They are dependent on each other.
Energy Flow in the Ecosystem
1.) The first very important thing I learned, was that animals can be the predators and the prey. Say for example, the snake kills the mouse. The Hawk will eat the snake. Therefore in this case, the snake is the prey and the predator.
2.) Another important thing I learned, was that everything uses energy. But the key to that, is that they use energy growing. Therefore when the predator goes to get the prey, they won't get all of the energy the producer got from the sun because they used some of the energy growing.
3.) I also learned that decomposers are very important to the food chain. Without them, there would be dead bodies all over the ecosystem. They help to clean it up and make sure it doesn't get really unhealthy.
4.) I learned that there is basically a set order for a chain. Like how the carnivore always goes after herbivore and producer.
5.) Lastly, I learned the difference between scavengers and predators. Scavengers take care of things that are already dead, most of the time things that predators killed. Scavengers just take the nutrients that predators didn't.
2.) Another important thing I learned, was that everything uses energy. But the key to that, is that they use energy growing. Therefore when the predator goes to get the prey, they won't get all of the energy the producer got from the sun because they used some of the energy growing.
3.) I also learned that decomposers are very important to the food chain. Without them, there would be dead bodies all over the ecosystem. They help to clean it up and make sure it doesn't get really unhealthy.
4.) I learned that there is basically a set order for a chain. Like how the carnivore always goes after herbivore and producer.
5.) Lastly, I learned the difference between scavengers and predators. Scavengers take care of things that are already dead, most of the time things that predators killed. Scavengers just take the nutrients that predators didn't.
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