The respiratory system is part of the excretory system?

no, respieatory system is used for breathing and a few other functions

Explanation:Excretory system is used for accumulation of food that contains dangerous chemicals

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called