Sound waves arriving at a listener first strike the _____

A) tectorial membrane
B) tympanic membrane
C) round-window membrane
D) hair cell membrane
E) basilar membrane


Answer: B

Biology & Microbiology

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What is the chemical basis for water's role as the universal solvent?

A. Because water is polar, it disrupts most covalent bonds. B. Because water is polar, it disrupts other hydrogen bonds. C. Because water is polar, it disrupts ionic bonds. D. a and b. E. b and c.

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In an HFR × F+ mating, the conjugation bridge usually breaks before chromosomal transfer is complete. Therefore, the recipient remains F-.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The relationship between mean annual precipitation (MAP) and aboveground net primary productivity (ANPP) is ANPP = 0.50 × (MAP) + (70 ) in mm MAP and (g/m2/yr) for ANPP in grassland systems

If precipitation is currently 1000 mm and MAP increases by 25 percent, then ANPP will be approximately A) 570. B) 625. C) 695. D) 713.

Biology & Microbiology

The infective phase of Giardia intestinalis is

A. the cyst B. the trophozoites C. the oocyst D. the promastigote

Biology & Microbiology