Individuals cannot evolve, but they may have that they can pass down to offspring as a favored trait for survival

People cannot evolve by themselves, but they have genes that they can pass down to offspring as a favored trait for survival. A gene is the basic functional unit of heredity. They are made up of DNA that act as instructions to make molecules and copy genetic traits. These genetic traits are instantly visible, such as eyes or color but others are not, such as blood type or risk for specific disease.

answer; ///digestive system,,alimentary system,gastrointestinal system and the gi

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .