Thursday, December 10, 2009
Blog # 13 Is the Green revolution good or bad? Support your position.
I believe the Green Revolution is overall good. There are many advantages and disadvantages in the green revolution such as it increased crop production in India but it also encourages the use of chemical fertilizers and pesticides. Going green is saving money as well as saving our planet. Currently we have about 3 billion people alive and well fed because of the Green Revolution and i don't believe we should switch up our methods now. So far we have been using the transformation of agriculture sine 1945 and it has been some what of a success besides some of the critics. The new developments of wheat could be used to feed the rapidly growing population of the country.
BLOG 6 Discuss the importance of eating lower on the food chain.
Eating lower on the food chain is more healthy due to the fact that they are first and they don't have any of the fatty and nasty foods that accumulate as your rise on the food chain. Eating low on the food chain significantly reduces the threat of pesticide residues as well. Tests in Britain have showed pesticide residue levels to be the highest in meat eaters, lower in lacto-vegetarians, and lowest in total vegetarians. This is because the contaminant goes through the additional link in the ecological chain, and the animal concentrates the pollutant in its body. Overall eating lower on the food chain is healthier foods and could help with weight loss and such.
Some animals and plants are individually stronger why is it weaker animals and plants thrive ?
I believe weaker animals and plants thrive because the weaker animals and plants tend to be smaller so they don't need the same amount of food and natural resources as a animal that is tiny like a cockroach survive because they don't have to work so hard for food and shelter. Also, if the weaker animals and plants such as producers and decomposers died out then the bigger animals such as the carnivores would have nothing to eat. Also, i think smaller animals are more durable and less confrontational and don't kill each other as much.
What are some precautions to take to prevent food borne diseases ?
There are many ways to prevent food borne diseases. If you are cooking at home you should especially try to exercise these precautions. One of the main things you should do when cooking at home is to fully cook your meat down. Eating raw foods is one of the easiest ways to catch a food borne disease. You should also to make sure to refrigerate foods promptly and immediately after you are done with your foods. Foods sitting out in room temperature is asking for food borne diseases. Also the pots, pans, and cooking utensils you work with should be washed before usage ALWAYS. Use hot water with soap. And to wash your hands.
Thursday, November 19, 2009
Describe the four types of competition and give an example of each.
The four different types of competition are intraspecific, interspecific, competitive exclusion, and resource petitioning. Intraspecific is defined as the struggle between members of a population for scarce resources. An example of intraspecific competition would be two lions fighting for a elephant. Interspecific competition refers to the competition between two or more species for some limiting resource. This limiting resource can be food or nutrients, space, mates, shelter, or any resource that is in demand by the animal. An example would be like a dog and a cat fighting. Competition exclusion is competition in which one species is out-competing another. Example would be native plants excluding non-native plants. The last type of competition is resource petitioning is species changing over time in order to reduce competition. Example would be animals eating different foods instead of fighting over it.
Give three examples of how individual characteristics influence populatiExeon sizes
Individuals characteristics can help them survive longer than a species that doesn't have those characteristics. This is known as "survival of the fittest" where which ever species or animal has better suited characteristics will survive longer. The first example would be the beak of a finch. If a finch's beak is longer or stronger than they are most likely better suited for it's environment because they are capable to do things with their beaks that other finches couldn't do. The second example would be a finches neck. If one finch has a longer neck it could do things a finch with a shorter neck couldn't, such as reaching food that is harder to reach. The third example would be a finch's feet. Some finch's could have claws or more durable feet so they could grab easier or other things like that easier so it is better suited for it's habitat.
In your opinion based upon Earth after people what is the biggest impact humans have had on the planet?
In my personal opinion I believe that humans affected Earth mostly by industrialization and technology. Without humans all the buildings, factories, stores, roads, and things of that sort would no longer be here and I feel like that is was we have impacted the Earth with the most. Many of the cities that the human race have built on Earth have taken away from animals habitat. Without us doing this I think planet Earth would be totally different. Also, since we industrialized we have caused many negative effects such as pollution because all the factories we have built are a big reason of why we have the problem with global warming. Our technology also has contributed to global warming because inventions such as automobiles and trains have caused more than enough pollution. I think that industrialization and technology are the biggest impact because I think the effects of it might be the reason planet Earth dies.
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