The evolution of populations due to chance isa)genetic drift.
b. has more effect in large populations than in small populations.
c. gene flow.
d. natural selection.
e. genetic variation.

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