Which one of these is not an example of intercellular communication?

a molecule released from one cell signals one near, but not directly adjacent.

a chemical signal is transmitted between the cells of two organisms.

a hormone travels through the circulatory system to deliver a signal.

a white blood cell produces antibodies.

Answer is D. A chemical signal is transmitted between the cells of two organisms

Intercellular communication is a process of communication between two cells of the same organism. The two cells communicate when a single molecule is received by a signal reception at a short distance or long distance to produce cellular response.  

Transmission of a chemical signal between the cells of two different organisms is not an example of intercelluar communication.  

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.