A cell can only respond to signals from other cells, not from the physical environment. receptor activation. The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on: the presence of the appropriate receptors on the cells of the target tissue or organ.
The blood's acidity would increase and become toxic
Answer:
chlorophyll
Explanation:
I only know this from prior science classes
I believe that would be an open system.
