With much of the focus of atmospheric pollution on climate-changing gases such as carbon dioxide (CO2), there can be a tendency to downplay the risk posed by other pollutants. One such pollutant is sulfur dioxide, the chemical involved in acid rain, which is discussed in your chapter readings, and can […]

you are shopping in the stores for this fancy perfume your mom likes and have found it for $125.00 per 1 liter bottle. not impressed with the price, you turned to the internet and found a price at 12 cents (0.12) per milliliter for a 1 liter bottle with free […]

Although standard redox potentials of NAD+ and NADP+ are essentially the same, and both are capable of carrying high-energy electrons, they are used in very distinct reactions in cells. Explain why NAD+/NADH+H+ is preferentially used for catabolic reaction (e.g. cellular respiration and glucose breakdown) and NADP+/NADPH+H+ is predominantly used for […]

1. How is sex determined in grasshoppers? Can you find other examples of organisms with a similar system of sex determination? 2. Some marine shellfish, such as limpets, become either male or female depending on where they grow. What makes one limpet a male and another a female? 3. Are […]