Scientists use dna sequencing to understand relationships among life on earth. the chart illustrates differences between five species and humans. although the dna sequence of each may vary, all but one statement concerning the organisms is true.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

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