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.
The evolution of limbs with digits was the most significant innovation that helped tetrapods move onto dry terrestrial environments. This adaptation allowed for weight support, better mobility, and the ability to navigate various terrains.
Evolutionary innovation refers to the gradual improvement and adaptation of existing technologies or products over time. This process involves making small changes or enhancements to existing designs or ideas, rather than creating something entirely new. Evolutionary innovation contributes to the development of new technologies and products by building upon previous knowledge and successes. By continuously refining and optimizing existing solutions, companies can create more efficient, reliable, and cost-effective products. This approach allows for a steady progression of advancements, leading to the creation of innovative products that meet the evolving needs of consumers.
The three evolutionary levels of the brain are the reptilian brain (responsible for basic survival functions), the limbic system (associated with emotions and memory), and the neocortex (involved in higher cognitive functions such as reasoning and problem-solving).
Duplication can lead to the evolution of new genes with novel functions or regulatory patterns. It provides genetic redundancy that can buffer against deleterious mutations, offering evolutionary flexibility and facilitating the evolution of complex traits. Additionally, duplicated genes can diverge in function, contributing to genetic innovation and adaptation in response to changing environments.
A transitional organism is an organism that exhibits traits of two different evolutionary stages, showing the evolutionary link between two related species. These organisms can provide valuable insights into how certain traits or features evolved over time. Examples include Archaeopteryx, a transitional species between reptiles and birds, and Tiktaalik, a transitional species between fish and tetrapods.
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Derived Characters.
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.
Mainly size is what changed from prehistoric times to today.
They are tetrapods.
They went from simple colonies of cells (such as some groupings of bacteria) to multicellular creatures with some cell specialisation.
Because it has evolutionary features of both non-avian reptiles and birds.
Amniote egg
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