A is true, the others are not. I would assume they count the mRNA and tRNA in protein synthesis as 'double stranded'
An intrusion is the action of intruding or intruding. I hope I helped a little!! :-)
C) Folded mountain with waves, twists, and turns
The Ring of Fire is an area on our world map where the a bunch of earthquakes and volcano eruptions happen.
The places where that happen make a Big, Red Ring
