How were great civilizations able to thrive with genetics?

the answer to your question is:

c. complementary base-pairing

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )