Relacion del sistema nervioso con la sexualidad

b. the carbon cycle ensures living things have a source of hydrogen

2%? i tried finding the exact sorry if it's not 100% correct ; -;

the glands which are associated with each description is given below:

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