Which two of the following statements are true regarding the human microbiome?
a. the human microbiota carries many more genes than the human genome
b. healthy people harbor potentially dangerous pathogens, but these are in low abundance
c. viruses present in healthy humans infect only the microbiota, not the human cells
d. many sites of the human body are sterile, notably the lungs and brain.
a. the human microbiota carries many more genes than the human genome
b. healthy people harbor potentially dangerous pathogens, but these are in low abundance
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The organization of muscle tissue from a macroscopic level to a microscopic one is as follows:a
muscle fibers ? myofibrils ? myofilaments. b. muscle fibers ? myofilaments ? myofibrils. c. myofibrils ? muscle fibers ? myofilaments. d. myofilaments ? myofibrils ? muscle fibers. e. muscle fibers ? myofibrils ? myofilaments.
The breakup of large areas of habitat into small, isolated patches is called:a
extinction. b. habitat fragmentation. c. invasive species. d. unsuitable territory. e. habitat endangerment.
A "naked" virus lacks (lipid/nucleic acid/protein)
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If a new anesthetic were developed that entered the nerve cells efficiently, why would it be important for the substance to be lipophilic (to dissolve in lipids)?
What will be an ideal response?