The appearance of the earliest marine animals with shells, such as mollusks and trilobites, marked a significant evolutionary milestone during the Cambrian Explosion around 541 million years ago. These organisms not only contributed to the diversification of life but also influenced sedimentary processes and marine ecosystems. Their hard shells provided protection, facilitating survival and ecological interactions, while also contributing to the fossil record, which helps geologists understand past environments and evolutionary history. This development laid the groundwork for more complex marine ecosystems and the evolution of later life forms.
The Vendian Period, also known as the Ediacaran Period, was the final geologic period of the Neoproterozoic Era before the Cambrian Period. It lasted from about 635 million to 541 million years ago and is known for the appearance of complex multicellular life forms, including the earliest known animals.
Geologic time and evolution.
One of the earliest uses of mathematics was for counting domesticated animals.
It was around in South America!!!!!!
The earliest unicellular animals appeared about 800 million years ago.
The earliest inhabitants of France were bacteria. Then came along animals such as birds and dinosaurs followed by human beings.
The life of animals is guided by patterns in nature. This includes weather patterns, geologic formations and the changing seasons.
Colonial protists
The information the geologic scale provides is animals and fossils over time and periods. Major divisions of time is called eras.
The evolutionary significance of Cnidarians is that they were the first animals to move. As for Porifera, they were the first animals on Earth.
Okonkwo is an animal and fish are animals, therefor, they are both animals and that is significant.
yes