Author Question: The technology of a passive solar flat-plate collector features all of the following, except A) a ... (Read 59 times)

charchew · **on:** Jul 16, 2018

The technology of a passive solar flat-plate collector features all of the following, except

A) a transparent glass or plastic cover.
B) black interior surface.
C) electrical backup for cloudy days.
D) an array of tubes through which water passes.

Question 2

The feeding of a flea on a dog's blood and your case of athlete's foot illustrate examples of

A) parasitism.
B) commensalism.
C) amensalism.
D) mutualism.