Entries by Daphne Hanson

The minerals that contain iron

Compare the appearance of the minerals that contain iron (Fe) and those that do not. For example, look at magnetite, pyroxene and hornblende and compare them to orthoclase, quartz and albite. How do they differ in appearance (which are darker).

Forms of renewable energy

The advantage of various forms of renewable energy, such as solar thermal and wind energy, is that they cause no net increase in atmospheric carbon dioxide. Is this true for biomass? Why or why not?

The indirect solar energy

Biomass is considered an example of indirect solar energy because it is the result of photosynthesis. Given that plants are the organisms that photosynthesize, why are animal wastes considered biomass?

The impact of the Spanish influenza

Explain the impact of the Spanish influenza epidemic on the following events: the outcome of WWI and the global economy. Why did the Spanish influenza epidemic have a disproportionately higher fatality rate in poorer parts of the world? Discuss at least two similarities or differences between the impact of the 1918 influenza pandemic and COVID […]

The effectiveness of mimicry

The effectiveness of mimicry relies on the ability of predators to recognize and remember patterns. Will Batesian or Müllerian mimicry be more effective in “teaching” predators which prey to avoid? Why?