Answer:
C: Hormones
Explanation:
hormones do not "signal" other cells. I hope this helps :)
Subconscious and unconscious mind ..the unconscious mind on the other hand is a term coined by freud to refer to a part of the mind that cannot be known by the conscious mind amd includes socially unacceptable ideas. wishes amd desires ,traumatic memories and painful emotions that have been repressed.
Answer:
Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere.
Not a physical change, It's a chemical change because you can't change the process back to its original state. If it was a physical change, you could change it back to its original state using the boiling, evaporating or melting process.
A. using new technology to provide additional supporting data.