- A Arthropoda
- B Chordata
- C Mollusca
- D Annelida
Correct answer: A. Arthropoda
Explanation: The cockroach, with its jointed legs and exoskeleton, is an arthropod.
Concept context
The four basic animal tissue types (epithelial, connective, muscular, neural) and the cockroach as a model organism for organ-system level organisation.