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What event marked the end of the Precambrian Era?
The Precambrian Era ended with the beginning of the Cambrian Period, approximately 541 million years ago. This period is characterized by the sudden appearance of a diverse range of complex life forms in the fossil record, known as the "Cambrian explosion".
What is the first part of the Paleozoic era?
The first part of the Paleozoic era is the Cambrian period, lasting from approximately 541 to 485 million years ago. It is known for the sudden appearance of diverse marine life forms in the fossil record, marking the beginning of the explosion of life known as the Cambrian explosion.
What what is the Cambrian explosion?
The sudden increase in invertebrate fossil diversity
According to the concept of punctuated equilibrium the sudden appearance of a new species in the fossil record means that?
there was a relatively rapid period of evolutionary change followed by long periods of stability without much change in the species. This suggests that evolution does not always happen gradually and continuously, but rather in punctuated bursts of change.
What event marks the beginning of the Cambrian period?
The beginning of the Cambrian period is marked by the Cambrian Explosion, a rapid diversification of life forms that occurred around 541 million years ago. This event led to the sudden appearance of a wide variety of complex multicellular organisms in the fossil record, setting the stage for the subsequent evolution of life on Earth.
Abundant fossil evidence did not appear in the geologic record until about?
The abundant fossil evidence appeared in the geologic record around 541 million years ago during the Cambrian period when complex organisms started to evolve. This sudden appearance of diverse life forms is known as the Cambrian explosion.
What is another name for the sudden appearance of a new allele?
Another name for the sudden appearance of a new allele is called a mutation. Darwin called it a sport of nature.
What event marked the end of the Precambrian Era?
The Precambrian Era ended with the beginning of the Cambrian Period, approximately 541 million years ago. This period is characterized by the sudden appearance of a diverse range of complex life forms in the fossil record, known as the "Cambrian explosion".
What is the first part of the Paleozoic era?
The first part of the Paleozoic era is the Cambrian period, lasting from approximately 541 to 485 million years ago. It is known for the sudden appearance of diverse marine life forms in the fossil record, marking the beginning of the explosion of life known as the Cambrian explosion.
How could you use appearance in a sentence?
Her appearance was horrible.The sudden appearance of the monster startled me.
How long ago did the Cambrian explosion happen?
The Cambrian explosion occurred about 541 million years ago. It marked a period of rapid diversification of life forms, with the sudden appearance of a wide variety of complex multicellular organisms in the fossil record.
What what is the Cambrian explosion?
The sudden increase in invertebrate fossil diversity
According to the concept of punctuated equilibrium the sudden appearance of a new species in the fossil record means that?
there was a relatively rapid period of evolutionary change followed by long periods of stability without much change in the species. This suggests that evolution does not always happen gradually and continuously, but rather in punctuated bursts of change.
What event marks the beginning of the Cambrian period?
The beginning of the Cambrian period is marked by the Cambrian Explosion, a rapid diversification of life forms that occurred around 541 million years ago. This event led to the sudden appearance of a wide variety of complex multicellular organisms in the fossil record, setting the stage for the subsequent evolution of life on Earth.
The Cambrian period is also called the?
The Cambrian period is also called the "Cambrian explosion" due to the sudden appearance and diversification of many major animal groups.
What happened during an event called Cambrian Explosion?
The sudden increase in invertebrate fossil diversity
What evidence did Stephen gould on his theory?
Stephen Gould supported his theory of punctuated equilibrium with evidence from the fossil record, noting that species show long periods of stability followed by sudden bursts of change. He argued that this pattern is better explained by rapid speciation events rather than gradual evolution. Additionally, Gould highlighted gaps in the fossil record as evidence for his theory.
