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Although animals share many common characteristics, there is also a great amount of diversity found in animals. Which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water? A) Fish B) Reptiles C) Mammals D) Amphibians

Respuesta :

The answer you are looking for is A) Fish

Fishes are examples of Vertebrates. They are cold-blooded; obtain dissolved oxygen in water through gills; most of them lay eggs; have scales; have fins; live in water. 

the answer is a. i did it on a quiz and got it right