Describe the Two Alternative Hypotheses for How a Bat Coronavirus

question 24

Essay

Describe the two alternative hypotheses for how a bat coronavirus evolved to infect humans and cause the SARS epidemic in 2003.Which one does the evidence appear to support?

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Definitions:

CAM Plants

Plants using Crassulacean Acid Metabolism, a photosynthetic pathway that conserves water by opening stomata at night.

Calvin-Benson Cycle

A series of biochemical redox reactions taking place in the stroma of chloroplasts in photosynthetic organisms, crucial in fixing carbon from CO2 into organic compounds.

Autotrophs

Organisms that produce their own food from inorganic substances using light or chemical energy, with plants being the most common examples.

Environment

The surrounding conditions and factors that affect living organisms and ecosystems, including both natural and man-made elements.