The deadliest infectious disease in the U.S. is (hepatitis B/ hepatitis C/HIV)
Fill in the blank(s) with the appropriate word(s).
hepatitis C
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Place the steps of biofilm formation in the correct order. _____ Surface (substratum) is preconditioned by environmental molecules. _____ Quorum sensing and the establishment of the extracellular matrix commences as microbes attach more stably. _____ Biofilm matures and some microorganisms escape to the planktonic state. _____ Microbes attach and detach from the preconditioned surface.
Fill in the blank(s) with the appropriate word(s).
Which muscle fiber type is most fatigable?
A. Slow-twitch (Type I) B. Fast-twitch (Type IIb) C. Fast-twitch (Type IIa)
The ecological niche of a plant in your yard includes (select all that apply)
A. the pH of its soil. B. the insects that eat it. C. the tree that shades it. D. the depth to which the soil freezes in the winter. E. none of these.
The barbed (fast growing) end of actin filaments is located in muscle
a. at the AI junction. b. near the M line of a contracted sarcomere c. at the inner margin of the AI zone d. at the Z disc e. none of the above