Answer: amphibian.
- A amphibian
- B a reptile
- C a mammal
- D a bird
Correct answer: A. amphibian
Explanation: Frogs are amphibians, living partly on land and partly in water.
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.