What is the thermodynamic process of the Elephant's Toothpaste experiment, out of isobaric, isochoric, isothermal, and adiabatic? Also is it an exothermic or endothermic reaction?

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Which statement best describes the function of enzymes?