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.
Death and muscles: You've all heard of the term rigor mortis, which is when dead people's muscles become really stiff. Quickly, the biochemistry behind it is that your muscle cells need oxygen to make energy (ATP), which helps pump calcium in and out of your muscle cells.