Steroids Essays & Term Papers

93 total

Nemesis Origin of the theory The "Nemesis Theory" was an outgrowth of the discovery of Alvarez et al., that the impact of a large (10 km diameter) comet or asteroid was responsible for the great mass extinction that took place 65 million years ago. Studies of the fossil record by Dave Raup and Jack Sepkoski shows that this was not an isolated event, but one of several mass extinctions that appear to occur on a regular 26 million year cycle. Their original paper analyzed marine foss

Athletes As Heroes Are there any sport heroes left in society today or have they all diminished? There are people who believe that there are sport heroes in todays society and there are people who believe that there is no such thing as sport heroes nowadays. When socie is at two different poles then there are three characteristics of athletes that need to be looked at in order to see from which perspective the pessimistic and optimistic people are coming from. These three characteristics