The Oak Tree Pathogen, Phytophthora Ramorum, Has Migrated 650 Km

question 47

Multiple Choice

The oak tree pathogen, Phytophthora ramorum, has migrated 650 km in 10 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:

Gender Understanding

The awareness and comprehension of the concepts of gender, including the roles, behaviors, activities, and attributes that a society considers appropriate for men and women.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases, and vice versa.

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Scientists who study humans and their ancestors through various aspects such as societal development, culture, and physical characteristics.