The criteria that are used to classify amphibians into orders are whether there have legs or not, what the legs look like, and what those legs do. Thus, the correct option is D.
What are Amphibians?
Amphibians may be defined as the type of organisms that can live both in terrestrial and aquatic habitats.
The amphibians are classified into three orders, in which frogs and toads are adapted for jumping, Salamanders and newts may walk or swim, while Caecilians are only amphibians that lack legs and live in water and soil.
Therefore, the correct option for this question is D.
To learn more about Amphibians, refer to the link:
https://brainly.com/question/10714806
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