What can occur in plants and animals that result in changes? (Choose all the apply)
a
random trait mutations
b
modifications
c
growth factors
d
none of the above

answer; /// i believe that the correct answer is (50%);

amber has allowed scientists to study dna that has been preserved over millions of years.

c

explanation:

idk

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