Atrazine is a chemical compound widely used as an herbicide in commercial crops and home lawn care. It is part of the triazine group of herbicides, the most widely used group of herbicides. We carry several weed killers you can buy that contain Atrazine to help you control a wide range of broadleaf and grassy weeds.
How many muscles does a cat have in each ear? 32 Thirty-two individual muscles in each ear allow for a manner of directional hearing: a cat can move each ear independently of the other.   Because of this mobility, a caâ¦t can move its body in one direction and point its ears in another direction.   Most cats have straight ears pointing upward.
Even the middle ear takes part in the muscular system of the head and neck. In fact, the smallest muscle of the skeleton is the stapedius, which measures around 1 millimeter (1/20th of an inch) in length. The muscles of the middle ear contract to dampen the amplitude of vibrations from the eardrum to the inner ear. The neck muscles, including the sternocleidomastoid and the trapezius, are responsible for the gross motor movement in the muscular system of the head and neck. They move the head in every direction, pulling the skull and jaw towards the shoulders, spine, and scapula.