Chyme is actually produced both in the stomach and the small and large intestines of the digestive tract. This thick semifluid mass or digestive juice is responsible for breaking down the food and making it easily passable into the intestinal walls. Chyme is also responsible in preventing the gastric juices of the stomach to attach its own and within the intestines it breaks down food into proteins, starches, and fibers.
Unlike light sound cannot travel through a vaccum. An example of a vacum is outer space. You can see lights from space, but can not hear sounds from space
The adaptations of organisms in a specific ecosystem are clues of evolution. for example, a giraffe has a long neck to reach leaves of high trees, birds migrate when cold weather comes etc
