Regena, age 50, is likely to have than 25-year-old owen. a smaller thymus thicker cartilage in the joints more fast-twitch muscle fibers softer artery walls

it has one origin of replication, but it proceeds in two directions - d)

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