Place the items in order from highest to lowest degree of internal organization.
tissue
organ system
organ
cell

organ system> organ> tissue> cell

Explanation: Molecules combine to form cells, cells combine to form tissues, tissues combine to form organs, organs combine to form organ systems, organ systems combine to form organisms.

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

the answer is d p: cell, q: organ, r: organ system, s: tissue