What process occurs during transcription? Copying of DNA to form an mRNA strand
Synthesis of proteins that are coded for by mRNA
Replication of DNA to produce a complementary DNA strand
mRNA folding up by forming complementary bonds with itself

what school and grade?

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the contamination

we are putting to many trash.