Which statement best describes why multicellular organisms have specialized systems? A. Systems fight against each other in the body.

B. One system can do everything in the body.

C. All systems work separately from each other.

D. Each system performs different functions that are necessary for life.

covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.

i think its y= -4x-14

so whats the answer

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: