Aquatic Ecosystems

I learned a lot from this video and article. It showed me a lot of things I can relate to from learning in class. I would describe the health of the aquatic ecosystems are not very good. Their habitat is being affected by density-independant factors like human impact. Also things like the greenhouse effect are affecting the population density as well. Some of the things that are happening in these ecosystems are that they are being warmed by sunlight and global warming which is causing fish to die. What happens is that the photic zone is heated, but then sunlight and heat is traveling lower which is affecting the fish population. Also we have been using the fish as a food source which is disrupting food chains and food webs which is also messing with some species trophic levels. We have lost quite a bit of our carnivours like sharks from our impact that it is affecting entire food webs. Humans have been making big impacts on these ecosystems too. We, as consumer, are overfishing and been eating too much fish. I think humans play a bigger role than they think in the biosphere. WE cause things like forrest fires that distroy biomes and other things that are based off human impact because we arn't being careful and using our resources wisely. We could be doing so many other things to be helping the biosphere that we are chooseing not to do. I honestly think people do not care about what they are doing to the biosphere. People have so many oppertunities to make a change and help save aquatic ecosystems by just picking up trash on a beach and throwing it away. This article and video really showed me what I could be doing to save the oceans so I am now going to try and be better!

Power Bands

1. I think these power bands are not very effective. I do not think they work. I think this because in the first video the showed the test to a man who didn't think it worked and he said when the man testing the bands on people knew who had the band it worked, but when he didn't know who had it, the band didn't work as well. So I honestly wouldn't think they worked. I would have to see it to believe it.
2. My hypothesis would be that with the band on people may do a little better, but not a big differece because they believe it works so their confidence goes up and they try harder without knowing it. To test this I would get 5 volenteers and test their strength by having them try to lift 175 pounds and measure how high up they lifted it, then have them put the band on and have them try to lift it again and see if it makes a difference in the height. Then to test the balance, I would do the arms out with one foot up test and see how long they stand before falling, then retest them while they are wearing the power band and compare the results. Then to test the flexability I would have the participants put one arm out straight in front of them. Then have them twist their arms and body around until they can't go any farther  and measure how far they turned. Then finally retest with them wearing the power band and measure how far they turned that time and compare the numbers. Then i would look over all my data and make my conclusion. That is my way of how to test the power bands.
3. It is necessary to look at all sides of the before forming a hypothesis and doing an investigation because if you don't get all the data about what your hypothesis is about, it will affect your hypothesis and investigation and give you wrong results because you might be missing vital information that will affect how you run your expiriment.