Question

Describe how metamorphosis changes the structures involved in gas exchange over the life cycle of animals in the clade Anura, and what evolutionary advantage this change provides.

a) Metamorphosis changes gill structures into lungs, enabling terrestrial life.
b) Metamorphosis changes lungs into gills, enabling aquatic respiration.
c) Metamorphosis changes skin color for camouflage in different environments.
d) Metamorphosis does not alter gas exchange structures in Anura.

Answer 1

Metamorphosis changes gills into lungs, enabling terrestrial life for animals in the clade Anura.

Step-by-step explanation:

Metamorphosis changes gills into lungs, enabling terrestrial life for animals in the clade Anura. During metamorphosis, the gills, tail, and lateral line system disappear, and four limbs develop, along with air-breathing lungs. This change allows the larvae to transition from living in water to living on land as adults. The evolutionary advantage of this change is that it provides the ability for Anura animals to explore and exploit terrestrial habitats, expanding their ecological niche.