Sometime between 22 and 26 weeks, a. a fetus has a chance of survival outside the womb. b. the external genitals are formed. c. synchrony between the fetal heart rate and motor activity peaks. d. vernix and lanugo begin to cover the skin.

The answer is a) a fetus has a chance of survival outside the womb.

Sometime between 22 and 26 weeks, a fetus has a chance of survival outside the womb.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

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