Biology Essays and Term Papers

of living organisms. In turn, organisms are chemical machines, i.e. organisms are composed of molecules, which are collections of smaller units called atoms. Therefore, we need to consider the chemistry of life or biochemistry. Chemical Bonding …

by Rachel Carson and published in 1962. The whole book was an alarmed appeal to everybody who used insecticides and especially who used DDT. The book mostly describes how DDT is used by people and how it enters the food chain and causes cancer and…

book, as well as a plea for help for our evanescing environment. In her book, Carson writes about all of the harmful effects of various deadly insecticides on our environment, as well as us. She explains the different uses of insecticides…

diseases causing the eruption of small blister like vesicles on the skin or mucous membranes, especially herpes simplex or herpes zoster. Herpes is a very common virus usually caused by periodic outbreaks of the facial and genital region. This infection…

on daphnia heart rate. Concentration of the solution Test 1Test 2MeanResult of t-test Measured in Beats Per Minute 0.63243923587.63 0.53083243167.63 0.33002442727.42 0.21602081846.79 011641601621.59 0.0 (water)144104124This is what they're compared…

plastic is. We call plastics plastic because they are pliable, that is, they can be shaped and moulded easily. As plastics become easier to mould and shape when they're hot, and melt when they get hot enough, we call them thermoplastics. This name…

In mitosis, cells divide in four steps. First, they go through prophase. In prophase, the centrioles begin to move apart from each other toward opposite poles and the nuclear membrane begins to breakup. In metaphase, chromosomes lineup…

at one factor which affects the enzyme catalase. Catalase is involved in the breakdown of Hydrogen Peroxide into water and oxygen. 2H202 "_ 2H20 + 02 It can be found in most cells, however it is mostly concentrated in the liver, kidney…

incorporates the most authoritative and most current scientific information on the treatment of prostate cancer (PC). It covers three basic and essential categories of information on PC: 1) an introduction and review of PC, anatomy of the urethra,…

went well. Even though I did come into problems. When I was setting up my experiments, I found that the water-tube that I had was not long enough so I had to improvise. I added an extra piece of 5 cm tubing to each plastic tube. I believe…