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Which class of vertebrates is considered to be the first to develop lungs, allowing them to become terrestrial organisms? A) Reptilia B) Aves C) Mammalia D) Amphibia
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Which class of vertebrates is considered to be the first to develop lungs, allowing them to become terrestrial organisms?

A) Reptilia
B) Aves
C) Mammalia
D) Amphibia

User Yacov
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1 Answer

1 vote

Answer:

Amphibia

Step-by-step explanation:

User Zxdawn
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