____________________ Plays a Role in About a Quarter of Fatal

question 47

Short Answer

____________________ plays a role in about a quarter of fatal motor vehicle accidents and half of fatal motorcycle crashes.

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Definitions:

Pfr

A form of the phytochrome, a photoreceptor protein in plants, that is active in red and far-red light for regulating plant growth.

Far-Red Light

Far-red light refers to the deep red light near infrared, with wavelengths between 700nm and 800nm, important in plant photomorphogenesis.

Ethylene

A hydrocarbon gas (C2H4) that acts as a plant hormone, regulating a wide range of processes including fruit ripening and leaf senescence.

Jasmonic Acid

A plant hormone that plays a key role in stress responses, growth, and developmental processes, as well as in defense mechanisms against pathogens.