Which statement is not an example of intercellular communication?
a. a molecule released from one cell signals one near, but not directly adjacent.
b. a chemical signal is transmitted between the cells of two organisms.
c. a white blood cell produces antibodies.
d. a hormone travels through the circulatory system to deliver a signal.
plz

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.