Which of the following statements best describes the history of life on Earth?

Question

Quizplus · Accepted Answer

Fossil evidence suggests that single-celled organisms dominated the Earth for the majority of its history. Multicellular organisms only appear in the fossil record relatively recently, about 600 million years ago. Additionally, photosynthetic organisms, which are a type of single-celled organism, are thought to have evolved around 3 billion years ago, but this is still long after the Earth formed. Therefore, choice C, which states that the Earth had single-celled life-forms for most of its history, is the best answer.

Which of the Following Statements Best Describes the History of Life