Final answer:
An insectivore typically has a simple and short digestive tract due to their protein-rich insect diet and typically has a small body size for efficient metabolism.
Step-by-step explanation:
You would expect an insectivore to have a simple, short digestive tract and a small body size. Insectivores consume insects, which unlike plant matter, are easier to break down and digest due to their rich protein content. As insects are a more readily digestible form of nutrients, the digestive system of an insectivore doesn't need the same complexity and length as that of an herbivore, which must break down tough plant material. This allows for a more streamlined digestion process in insectivores. In terms of body size, insectivores tend to be small to medium since their high protein diet can be metabolized efficiently, providing the necessary energy without the need for a large gut to process food.