Challenge Questions

Challenge 1.Which word describes the energy in an exergonic reaction? Created Released Absorbed Destroyed

Challenge 2.Which theory is based on the work of Louis Pasteur and is central to the practice of modern medicine? Cell theory Germ theory Evolutionary theory Chromosome theory

Challenge 3.The H1N1 Virus, commonly known as the swine flu, was declared a pandemic by the World Health Organization in 2009. Which approach is most effective in preventing the spread of the virus? Vaccination Sterilization Use of antibiotics Use of fungicides

Challenge 4.What process best explains how a nerve cell and a muscle cell can both develop from the same fertilized egg? Differentiation Natural selection Selective breeding Genetic engineering

Challenge 5.What is the best explanation for the continual changes in the classification system of organisms? All organisms struggle for existence and become extinct. All organisms compete to be at the top of the food chain. Technological advances have allowed scientist to better compare organisms. More species have been discovered, but scientists have not analyzed all the data.