1. Observe the chamelion/insect interaction in the image found: Identify two evolved traits that provide survival benefits to either the chamelion, the insect, or both. For one of the traits, speculate about the trait’s history in the species. What was the creature like before the trait appeared? Genetic changes don’t […]

Q1. Use of synthetic fertilizers often leads to the contamination of groundwater with nitrates. Nitrate pollution is also the suspected cause of anoxic “dead zones” in the ocean. Which might help reduce nitrate pollution? Q2. A cell whose cytoplasm has a concentration of 0.02 molar glucose is placed in a […]

1. What are biofilms, how do they form, and how can biofilms complicate treatment of infectious diseases? 2. Why are septic tanks and oxidation ponds not feasible for large municipalities? 3. What is the purpose of a coliform count on water? 4. Bioremediation refers to the use of the living […]

An enzyme accelerates a reaction by a factor of 1011 over the uncatalyzed reaction in water. a. If the effect of the enzyme is solely to reduce the energy of the transition state, by what amount does it reduce the energy of the transition state (EA)? Assume RT = 2.5 […]