Chemical signals reaching a cell deep inside a multicellular organism may come from
A) the brain.
B) the lymphatic system.
C) glands.
D) other cell types.
E) All of the above

Question

Quizplus · Accepted Answer

Chemical signals that reach a cell can come from various sources within the organism, including the brain, glands, lymphatic system, and other cell types. Therefore, all of the answer choices are correct.

Chemical Signals Reaching a Cell Deep Inside a Multicellular Organism