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Mainly size is what changed from prehistoric times to today.

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12y ago

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What was the most significant evolutionary change that allowed reptiles to colonize all the land was the evolution of?

Amniote egg


Is metamorphis an evolutionary innovation associated with reptiles?

yes


What kind of vertebrate was the likely evolutionary precursor to mammals?

reptiles


Why is cerebral cortex also known as new brain?

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.


Why is it hard to classify archaeopteryx?

Because it has evolutionary features of both non-avian reptiles and birds.


What evolutionary innovation is associated with reptiles?

The amniotic egg is a key evolutionary innovation associated with reptiles. This type of egg allowed reptiles to reproduce on land, away from water, which was a significant advantage for colonizing terrestrial environments.


What is Phyletic change?

Evolutionary change is a process where things change over a period of time. Such as going from a candle, to a light bulb.


What can lead scientist to change an evolutionary tree?

What can lead scientists to change an evolutionary tree?


What is the name for this type of rapid evolutionary change?

The name for this type of rapid evolutionary change is "punctuated equilibrium."


What was the evolutionary advantage of the modification of scales on reptiles to feathers on ancestral birds?

The feathers helped retain body heat.


Can reptiles change color to match the ocean bottom?

Not really. While there are reptiles that can change color, none of them live in the ocean.


What are the raw material of evolutionary change?

Mutations are considered as the raw materials of evolutionary change. They are structural changes in the DNA sequence of an organism.