Answer: tissue.
- A tissue
- B whole organ
- C body system
- D single cell
Correct answer: A. tissue
Explanation: A tissue is a group of similar cells with a shared function.
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.