Question. _ are tetrapods.
Options:
- (A) animals
- (B) amoeba
- (C) Frogs
- (D) Length
- (E) insects
- (F) Spiders
- (G) Snakes
- (H) Birds
Answer. (C)
What step-by-step reasoning justifies that answer?
Reasoning: Amphibians are the first true tetrapods, or vertebrates with four limbs. Frogs are classified as amphibians. Frogs are tetrapods.