The Oak Tree Pathogen Phytophthora Ramorum Has Migrated 800 Km

question 26

Multiple Choice

The oak tree pathogen Phytophthora ramorum has migrated 800 km in 15 years. West Nile virus spread from New York State to 46 other states in 5 years. The difference in the rate of spread is probably related to

• A) the lethality of each pathogen.
• B) the mobility of their hosts.
• C) the fact that viruses are very small.
• D) innate resistance.
• E) dormancy viability.

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Definitions:

Unconscious Desire

Wishes or wants that influence behavior and thought processes without the individual's conscious recognition.

REM Behavior Disorder

A sleep disorder in which sufferers physically act out vivid, often unpleasant dreams with vocal sounds and sudden, violent arm and leg movements.

Narcolepsy

A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep, often linked to a deficiency in the brain neurotransmitter orexin.

Somnambulism

A condition also known as sleepwalking, where an individual engages in activities that are usually performed during a state of full consciousness while being asleep.