What did engelmann conclude about the congregation of bacteria in the red and blue areas? use the following information to answer the question after the paragraph. theodor w. engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. he added aerobic bacteria and then noted in which areas the bacteria congregated. he noted that the largest groups were found in the areas illuminated by the red and blue light. a. bacteria released excess carbon dioxide in these areas. b. bacteria congregated in these areas due to an increase in the temperature of the red and blue light. c. bacteria congregated in these areas because these areas had the most oxygen being released. d. bacteria are attracted to red and blue light and thus these wavelengths are more reactive than other wavelengths. e. bacteria congregated in these areas due to an increase in the temperature caused by an increase in photosynthesis.

Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

What best describes lactic acid fermentation?

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight