Animals represented in Ediacaran fossils are morphologically very similar to modern-day lophotrochozoans. Ediacaran fossils depict animals with mineralized endoskeletons, similar to modern-day vertebrates. If you were to place the animals depicted in Ediacaran fossils in a phylogenetic tree, these organisms would share their most recent common ancestor with choanoflagellates. Ediacaran fossils depict

Traditionally, these fauna have come to represent an important development in the evolution of life on Earth, because they immediately predate the explosion of life-forms at the beginning of the Cambrian Period 541 million years ago.

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the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.