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The sudden increase in invertebrate fossil diversity
Wiki User
∙ 15y ago
Wiki User
∙ 8y agoMany new groups of organisms evolved very quickly
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Whatever its ultimate cause the Cambrian explosion is a prime example of?
The sudden and very dramatic increase in life forms on earth (especially in the oceans) that took place during the Cambrian period of earth's evolution. Note that in this context "sudden" means "just a few million years".
What animals went extinct during Cambrian Period?
Levels of calcium rose in the oceans, allowing many animals to produce hard shells. Also, the first fossils of almost all animal phyla began appearing in Cambrian strata, including the Echinodermata, Arthropoda, and Chordata.
What was the antebellum era what happened during that era?
the new state of Arkansas struggled through Manny changes during its antebellum period
What are animals called that only eat during the day?
Animals that are only active during the day are called diurnal.Animals that are most active at night are nocturnal.
What is A strand of replicated DNA formed during prophase called?
chromatid
What is the Cambrian explosion why is it important to the history of life on earth?
During the Cambrian Explosion. life took a great step forward to a world called life. A great number of organisms were evolving all over the world.
What is the cambrain explosion?
life during the early Cambrian period
Which group under went a large increase in diversity during the Cambrian explosion?
Animals were exposed to this variance in diversity.
What is meant by term Cambrian explosion?
The Cambrian explosion is an apparently sudden increase in fossils marking the separation between Precambrian rocks and Cambrian rocks. At one time this was believed to mark the beginning of multicellular life, but in fact it only marks the evolution of hard body parts (most of which were made of calcium carbonate). It turns out that there were as many multicellular organisms in the late Precambrian as there were during the Cambrian explosion at the beginning of the Cambrian, but the lack of hard body parts in those organisms made the formation of easy to identify fossils of those organisms much rarer.
During what period did the first vertebrates appear?
The first vertebrates evolved during the Cambrian Explosion about 525 million years ago. The Cambrian Explosion, obviously, occurred during the Cambrian period. The Cambrian period was part of the Paleozoic era.
When were fish introduced to the world?
Fish began to evolve during the Cambrian explosion around 530 million years ago. The evolution of early sharks took place in the Devonian period.
Whatever its ultimate cause the Cambrian explosion is a prime example of?
The sudden and very dramatic increase in life forms on earth (especially in the oceans) that took place during the Cambrian period of earth's evolution. Note that in this context "sudden" means "just a few million years".
Why is it important to scientists that many organisms during the Cambrian period had hard parts?
Referred to the Cambrian explosion is the Cambrian period. Shells and exoskeletons had hard parts. The Cambrian period was the first of the Paleozoic Era.The hard parts made the preservation of their shapes, and sometimes their body cavities, much more easy to recognize as a fossil. The earlier soft bodied organisms required very fine silts for their effective preservation. A representative group they found are the Ediacaran fauna.
What the beginning of the Paleozoic era marks?
The start of the Paleozoic Era was marked by a huge diversification of life known as the Cambrian Explosion. Many genre of life emerged during the Cambrian Period. Although plants and animals were around in the Pre-Cambrian it was not until after the extinction event that immediately proceeded the Paleozoic that many advanced forms of life evolved such as multi-celled plants and advanced animals such as the arthropods.
What is the significance of the didvision between the Cambrian and PreCambrian periods?
During the Cambrian period, life began to appear on the planet.
What tragedy happened in space exploration in 1986?
The explosion of the Space Shuttle Challenger during take off.
Were there herbivores during the Cambrian time period?
It is thought that most of the animals in the Cambrian Period were herbivores feeding on the Green Algae which we believe was abundant during the Period.
