Answer: Increases absorptive surface area.
- A Increases absorptive surface area
- B Grinds food particles
- C Stores excess blood
- D Secretes the cocoon
Correct answer: A. Increases absorptive surface area
Explanation: The typhlosole is an internal median fold of the intestinal wall that greatly increases the effective surface area for absorption of digested food.
The four basic animal tissue types and their core functions: epithelial (covering/lining), connective (support and transport), muscular (movement), and neural (signal conduction).
Concept context
The four basic animal tissue types (epithelial, connective, muscular, neural) and the cockroach as a model organism for organ-system level organisation.