Mule deer are known as browsers. From late spring to early fall, mule deer gain weight and build fat reserves by feeding heavily on broad-leafed plants and grasses. During the winter and early spring, when there is little forage available, their diet is mostly leaves, stems and buds.
Rating Newest Oldest. Best Answer: A chemical change in the muscles after a body's death causes Rigor Mortis. ATP (energy) will stop being made. The body is unable to complete its ATP formation cycle so they create muscular contractions. This causes the limbs to become stiff and difficult to manipulate.
(7) The body loses its rigidity due to the decay of the muscles. In conclusion, rigor mortis is the stiffening of the body due to a lack of ATP after death. Only temporary, the condition is environmentally sensitive and is believed to occur in all grown humans.7) The body loses its rigidity due to the decay of the muscles. In conclusion, rigor mortis is the stiffening of the body due to a lack of ATP after death. Only temporary, the condition is environmentally sensitive and is believed to occur in all grown humans.