An evolutionary innovation associated with amphibians is their heart, which can exchange gases outside of a water environment. This allows the amphibians to live on land.
Amphibians are considered to be unique evolutionary groups because they retained the ability to live in and out of water. Other creatures simply live in the water or on land.
amnionic eggs
Amnionic eggs
The evolutionary innovation that was most significant in helping tetrapods move to dry terrestrial environments was their lungs.
Evolutionary Classification.
evolutionary change.
Hominids
scientists can infer how closely related the organisms are in an evolutionary sense
yes
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Derived Characters.
The evolutionary innovation that was most significant in helping tetrapods move to dry terrestrial environments was their lungs.
reptiles
Evolutionary biologists believe that reptiles existed before mammals, and that mammals evolved from reptiles. Reptiles do not have a cerebral cortex in their brains, but mammals do, therefore, in evolutionary terms, the cerebral cortex is new.
They are tetrapods.
Mainly size is what changed from prehistoric times to today.
They went from simple colonies of cells (such as some groupings of bacteria) to multicellular creatures with some cell specialisation.
Dinosaurs are more closely related to reptiles than to amphibians. In fact, dinosaurs are classified as reptiles. Amphibians are lower on the evolutionary tree than reptiles. Reptiles developed from amphibians. Amphibians developed from fish.
Because it has evolutionary features of both non-avian reptiles and birds.
entrepernuers