They stand on the offensive line against the defense and they try to keep the quarterback from being sacked
Cortosis
The foul is called "roughing the passer" and the penalty is 15 yards against the defense.
Any player on the opposing teams defense is allowed to sack the quarterback.
The musky smell is a defense mechanism, which is an effective repellent against many predators.
Anyone on the field can, usually only the defense does
In the early 19 hundreds many QB's played offense and defense.
When the defense tackles the quarterback behind the line of scrimmage for a loss.
As a defense against WHAT?
Offense the blind side of the quarterback Baltimore ravens
The defense so if its a Blitz he can change it up
They have a hard exoskeleton that protects them from some small predators like ants, but it is not effective against mammals, reptiles, and other large predators.