Plants detect and respond to the daily cycle of light and darkness.
Potted plants in season include chrysanthemums, daisies and cyclamen.
Daisies detect and respond to the daily cycle of light and darkness.
what detects and responds to the daily cycle of light and darkness?

(A) chemicals
(B) h2o
(C) humans
(D) goats
(E) clouds
(F) gravity
(G) fens
(H) daisies