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TLS Online TPP Program

#Question id: 9192

The oak tree pathogen Phytophthora ramorum has migrated 650 km in ten years. West Nile virus spread from New York State to 46 others states in five years. The difference in the rate of spread is probably related to

#Unit 9. Diversity of Life Forms
  1. how lethal each pathogen is.
  2. the mobility of their hosts.
  3. the fact that viruses are very small.
  4. innate resistance.
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TLS Online TPP Program

#Question id: 9189

#Unit 9. Diversity of Life Forms

A plant will recognize a pathogenic invader
TLS Online TPP Program

#Question id: 9190

#Unit 9. Diversity of Life Forms

What is the probable role of salicylic acid in the defense responses of plants?
TLS Online TPP Program

#Question id: 9191

#Unit 9. Diversity of Life Forms

When an arborist prunes a limb off a valuable tree, he or she usually paints the cut surface. The primary purpose of the paint is to
TLS Online TPP Program

#Question id: 9193

#Unit 9. Diversity of Life Forms

Which of the following best describes the consequences of White-band disease in Caribbean coral reefs?
TLS Online TPP Program

#Question id: 9194

#Unit 9. Diversity of Life Forms

Zoonotic disease
TLS Online TPP Program

#Question id: 9051

#Unit 9. Diversity of Life Forms

What would happen to the seasons if Earth were tilted 35 degrees off its orbital plane instead of the usual 23.5 degrees?