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What evolutionary development do scientists think occurred in the Cambrian period that gave rise to more complex fish?
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∙ 11y ago
They theorize that during this period the first of three gill arches on a jawless fish evolved into the first jaws.
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∙ 11y ago
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Give a brief description of the evolutionary changes that occurred in the organism?
they have lots of steps
What evolutionary advantages might arise from not needing free water for fertilization?
You would not become so desperate when a drought occurred. It would be easier to farm if water was not such a necessity.
Which important event occurred during the Industrial and scientific revolutions?
Another Answer: The Development of new methods of anesthesia
How often do scientists say that recent cycles of advancing and retreating ice sheets occur?
The answer choices for this question are missing. However approximately 100,00 years is how often scientists say that the recent cycles of advancing and retreating ice sheets occurred.
What evolutionary milestone involving animals occurred during the devonian period?
Sharks, lung fish, bony fish, trilobite, and,amphibians.
What era did the Ediacaran Fauna Live?
The Ediacarian fauna are from the Cambrian Explosion. The Cambrian Explosion occurred in the Cambrian period. The Cambrian period was part of the Paleozoic era.
When did scientists believe that chemical evolution occurred?
Scientists have believed that chemical evolution occurred about 4 billion years ago, shortly after the formation of the Earth. This process is thought to have led to the development of the first life forms on our planet.
What is Cambrian?
The Cambrian is a period of time which comes after the vendian millions of years before dinosaurs it was hotter than the Sahara with no plants or animals on land only in the seas.Geologists name the different periods of the earth's development. Adam Sedgwick named the period within the Paleozoic era the Cambrian period. The Cambrian period occurred millions of years ago and represents the first geological period of this era. During this time, living organisms evolved to be more complex than the formerly known single cellular types.
What occurred prior to angiosperms?
In the evolutionary ladder prior to Angiosperms, non-flowering vascular plants occurred.
When did large numbers of fossils first appear in the geologic record?
Large numbers of fossils begin to appear around 530 million years ago. It is called the Cambrian Explosion, because it occurred in the Cambrian period. The Cambrian period was the first part of the Paleozoic era.
Give a brief description of the evolutionary changes that occurred in the organism?
they have lots of steps
Why did the Cambrian explosion may not have been an explosion?
The Cambrian Explosion wasn't a literal explosion. Instead, it was a span of time when organisms evolved into an immense number of new forms, and biodiversity increased greatly, reaching its modern level. The Cambrian Explosion occurred between 530 and 450 million years ago.
Diversification of animal phyla occurred in the?
Diversification of animal phyla occurred during the Cambrian explosion around 541 million years ago. This event marked a rapid increase in the variety of body plans and structures within the animal kingdom.
What Era is Cambrian?
It is the era which occurred about 550 million years ago when animal life exploded onto the scene, here on planet Earth.
Have scientists drilled into the earths Lower Mantle?
No. This has not occurred, yet.
Which major development occurred first?
sex
What change occurred in ancient Greece?
In this time period huge economic development occurred in Greece
