Resistivity: You are given a copper bar of dimensions 3 cm ×…

Resistivity: You are given a copper bar of dimensions 3 cm × 5 cm × 8 cm and asked to attach leads to it in order to make a resistor. (3 points each)(a) If you want to achieve the SMALLEST possible resistance, you should attach the leads to the opposite faces that measureA) 3 cm × 5 cm.B) 3 cm × 8 cm.C) 5 cm × 8 cm.D) Any pair of faces produces the same resistance.(b)  If you want to achieve the LARGEST possible resistance, you should attach the leads to the opposite faces that measureA) 3 cm × 5 cm.B) 3 cm × 8 cm.C) 5 cm × 8 cm.D) Any pair of faces produces the same resistance.

In a different set of experiments, you identify two kinds of…

In a different set of experiments, you identify two kinds of mutations in S. aureus. The first type of mutation makes the bacteria more susceptible to antibiotic X; the second type of mutation makes it more resistant to antibiotic X. In the absence of the antibiotic, which mutation would you expect to be more abundant?

A small child enters a clinic for the third time in one mont…

A small child enters a clinic for the third time in one month with another bad skin infection filled with pus (tissue fluid combined with large numbers of bacteria growing in the fluid). Decreased numbers, or loss of function, in which of the following cell types could account for these symptoms?