"A" in Science by HensleyB

In the linked image, E_a denotes what quantity?

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The 2011 scientific paper "Probable Zoonotic Leprosy in the Southern United States" argued that what animal is a natural reservoir for the leprosy bacillus?

Due to its ubiquity in metabolic pathways, ATP is often referred to as "the energy currency of the cell." What do the letters ATP stand for?

Name the common household substance whose chemical structure is given in the linked image.

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Despite their dramatically different material properties, graphite and diamond are both solid phase forms of the element carbon. What term is given to one of two or more different forms of an element, such as graphite or diamond?

What optical phenomenon that occurs when the sun is below the horizon produces a reddish band of light on the summits of mountains (hence the name)?

What physicist and Nobel laureate lends his name to a magnetohydrodynamic wave in which ions oscillate in response to a magnetic field?

What combination of nitric acid and hydrochloric acid gets its name from its ability to dissolve platinum and gold?

The "Jurassic Coast" of southern England was fertile ground for what fossil collector and paleontologist who, despite her ineligibility to join the Geological Society of London, had a large impact on the field with her discoveries, which included the first plesiosaur skeleton?

July 16, 1945, the year 1964, and the year 1610 are among the suggested start dates of what proposed geological epoch that acknowledges the vast impact of humanity on the Earth's lithosphere?

Named for a 17th century Italian ichthyologist, what jelly-filled pores serve as electroreceptors in some fish (notably sharks), allowing the fish to detect electric and magnetic fields as well as temperature gradients?

When a high-energy photon ejects an inner shell electron, an electron from a higher shell can cascade down to fill the vacancy. The energy released in this cascade can potentially eject a second electron, allowing a single ionizing photon to produce two or more photoelectrons. Although this effect was discovered first by Lise Meitner, it is named after what other physicist who also lends his name to the world's largest cosmic ray observatory?