Answer: C. Gravel
Gravel has the highest permeability.
Night vision because the creature will be able to hunt food in the night, having enhanced eye sight. To continue, light colored fur would make the creature stand out taking away cover and the other answers have no benefit to the scavenger.
Mechanical digestion so breaking down of the food in your mouth. Hope this help :)
Small leaves protect desert plants from animals that eat plants.
Cell regulation is conducted by special proteins. These special
proteins are enzymes which help in the regulation of bodily function. They hasten
the chemical reaction such as pepsin. Pepsin is a protein that helps in the
digestion of food in the body.
