Which of the following vectors transmit scrub typhus?
a. Lice
b. Ticks
c. Fleas
d. Chiggers
D
Scrub typhus caused by Orientia tsutsugamushi is transmitted via chiggers, which are the larval (juvenile) form of the common mite.
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The major function of the medicinal compounds in plants is to _____
A) attract pollinators for seed dispersal B) attract insects and birds to spread seeds and fruits C) defend the plant against herbivores D) defend the plant against microbes
The slender stalk that connects the flattened leaf blade to the stem in most dicots is the
A. meristem. B. petiole. C. stele. D. receptacle. E. vein.
Reptiles can maintain their internal body temperature by
A. behavioral mechanisms. B. drinking warm or cool water. C. eating and oxidizing more food. D. an effective insulating covering. E. rerouting blood to distribute heat.
The primary consumer is
a. the second link in a food chain. b. an herbivore. c. an animal. d. eaten by a carnivore. e. all of these.