The causative agent of Lyme disease is ________, which is carried primarily by the ________
A) a flavivirus / Ixodes sp. (deer tick)
B) Yersinia pestis / Xenopsylla cheopis (rat flea)
C) Rickettsia prowazekii / Culex species (mosquito)
D) Borrelia burgdorferi / Ixodes sp. (deer tick)
Answer: D
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Nitrifying Thaumarchaeota outcompete nitrifying bacteria in many aquatic and terrestrial environments because Thaumarchaeota
A) are well-adapted to high salinity and extreme UV irradiation. B) are well-adapted to temperature extremes. C) are well-adapted to very low nutrient and electron donor concentrations. D) have very resistant specialized cells that survive long periods of dehydration and nutrient starvation.
Glycosylated proteins and lipids within the plasma membrane are important for
A. cell recognition. B. cell protection. C. cell energy storage. D. cell recognition and protection. E. cell protection and energy storage.
Insertion or deletion of a nucleotide in a gene causes a type of mutation called a(n) ____________________ mutation
Fill in the blank(s) with correct word
Which bone is the major load-bearing bone of the lower leg?
a. tibia b. fibula c. femur d. patella e. pelvic girdle