Wednesday, February 9, 2011

Genetics Articles

People have researched genetics for a long time and we have made progress, but the man that really opened up the eyes of people was Gregor Mendel. Mendel discovered genotypes by looking at pea plants. He started his research on pea plants and realized that their genetic structure worked the exact same way as ours does. I read an article on this and I found it very interesting and it really taught me a lot.
Have you ever seen a chicken at the age of six weeks that weighs 2.6kg? Well this article explains how these chickens are selectively bred to be this large. Selective breeding is when animals and plants are bred for particular traits while genetic modification is changing genetics to where they are no longer natural. There are benefits to changing these animals. One of them is that it will help them survive in different conditions. another one is that it can improve the meat quality and the stature of an animal. I agree with what they're doing with selective breeding because I believe that it can help them as well as us.

Monday, January 24, 2011

Why Ecosystem Services Matter

Do people really care about the ecosystem? This podcast explains how the scientists want to conserve ecosystem services like pollination, etc. This podcast explains how ecosystem services are being used as a profitable service. Ecosystem services are the products that nature provides. Nature isn't really getting credit for these services. People are putting prices on ecosystem services like killing bees. I completely disagree with the whole idea. I feel like we're using nature and not repaying it in any way.

The World Without Mosquitoes Article

Why do mosquitoes truly matter? This article we read was about mosquitoes and how as we're getting rid of them, we're killing other animals as well that survive off of mosquitoes. It talks about how the mosquito fish species. will die unless they have mosquitoes which we eradicate. Then, it talks about how the herds of caribou that get 300 milliliters of blood drained from their bodies by mosquitoes. Afterwards, there's a mini-article that explains the weapons we're using against the mosquitoes and the other ways we get rid of mosquitoes. I feel like we're only killing mosquitoes for the safety of humans, not to benefit the ecosystems.