E. coli is a species of bacteria. What advantage does E. coli have over sexually reproducing organisms? The bacteria’s offspring have differences in their DNA. The bacteria require less energy to make offspring. The bacteria can reproduce more slowly. The bacteria’s offspring have to fight for resources.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in