Tracy observes an organism that lives in a lake by her house. The organism has an internal skeleton, scales, fins, and gills. Th e organism that Tracy observes is most likely a(n) _______. A. amphibian B. fish C. mammal D. reptile
2 answers:
I'd say B. Its most likely a fish.
The answer would be B. fish, because a fish is the only selection that has fins.
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