They say we have lots of old retrovirus DNA in our genome. You would think this DNA invades heritable cells all the time, but in the
past 60 million years, our genome has only been invaded
Select one:
30-40 times
0 40,000 times
O 500-600 times
O 12 times

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 : )