Which of the following statements about diodes and triodes is correct?
a. adjusting the grid within a diode will have more of an effect than it will in the triode.
b. triodes have three electrodes, whereas diodes have only a grid and a cathode. c. diodes are often utilized as amplifiers, whereas triodes are often used as rectifiers.
d. diodes, which are often utilized as rectifiers, have two electrodes.

The right answer is D.

A diode is a so-called active component, which is part (like the transistor) of the family of semiconductors. By definition, a diode refers to an electronic component with two electrodes. It is a polarized component which therefore has two electrodes, an anode, and a cathode. The cathode (sometimes called K, for Kathode) is located by a locating ring (there may be several rings, in this case, the locating ring is the one closest to the edge of the diode).

typically, most spiders possess eight eyes. however, others have as many as 12, and some don't have any. these eyes are for detecting light from dark, deciphering shapes and for gathering their prey.

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.