1. Mutualism is a symbiotic relationship and both partners benefit whereas commensalism benefits only one and the other gets nothing.
2. A negative externality is a when a third party effects someone or something in a bad way and there is no compensation.
3. Gathered from my readings in the book negative feedback can be a great thing for nature. It allows a system to stabilize itself. Positive feedback can cause an ecosystem to destabilize. This is usually a bad thing but sometimes good things come from all of the chaos.
4. Isotopes are atoms of an element with different number of neutrons.
5. Entropy describes the chaos that is brought forth when energy transforms.
6. I believe that yes the term carrying capacity can apply to both the ecosystems and human beings. The definition is explained in the book using human population growth. But I also believe that many ecosystems can destroy themselves with over population so in order for them to survive they need a equal “birth” rate and death rate. This carrying capacity would allow an ecosystem to survive.
7. CFC’s are Chlorofluorocarbons. They are used in refrigerators, aerosol, and air conditioning. They have to do with the ozone hole because they are one of the main causes of it. Over the years uses of CFC’s started to grow and with it the hole in our ozone.
8. The Little Ice Age lasted between 1300 and 1870. It was a time when Europe and Northern America endured a much colder temperature then they were used to, and mountain glaciers expanded.
9. The United States of America, Liberia, and Burma/Myanmar are the three countries in the world that have not adopted the metric system.
10. Mycorrhiza is a fungus that grows in a symbiotic relationship with the roots of plants, meaning both are mutually benefitted.
11. A preservationist believes in keeping nature the way it is without any alterations and making