A(n) ____ species is one that is likely to become endangered in the foreseeable future
A) mature
B) exotic
C) extinct
D) threatened
D
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Answer the following statement(s) true (T) or false (F)
Fiberglass shingles have a base made of a heavy asphalt-saturated paper felt.
Classify the following costs as typically direct (D) or indirect (I):
What happens to the current through the motor coil in the diagram below when the switch is first opened?
A. the current reverses direction and starts to decrease immediately until it diminishes to zero. B. the current continues to flow in the same direction and starts to decrease immediately until it diminishes to zero. C. it is zero to begin with (with the switch in the closed position) and it remains at zero (when the switch is opened). D. the current continues to flow in the same direction, increasing immediately after the switch is opened, and then decreasing until it diminishes to zero. E. the current stops immediately (as soon as the switch is opened).
Devices whose outputs share signal lines must use ________
A) 3.3V or lower logic voltages B) open collector outputs C) tri-state outputs D) either B or C