Question

Using your knowledge gained from this lesson, order these "sequence of events" from OLDEST (bottom) to YOUNGEST (top) as though these fossils were found in the layers of the earth.

A) no life on earth
B) microorganisms begin to appear
C) much diversity between organisms: plants and animals exist together
D) multicellular organisms appear with more complex features

Answer 1

In the sequence of events from oldest to youngest, 'no life on Earth' would be first, followed by the appearance of microorganisms, then multicellular organisms with complex features, and lastly the diversity of both plants and animals coexisting.

Step-by-step explanation:

Understanding the sequence of events in the history of life on Earth involves placing significant events in the correct chronological order based on geological and fossil evidence.

1. No life on Earth - This is the earliest stage in Earth's history, where the planet was uninhabited by any form of life.
2. Microorganisms begin to appear - Following the period with no life, Earth saw the emergence of the simplest forms of life. Fossil evidence suggests the presence of microbial life forms as early as 3.5 billion years ago.
3. Multicellular organisms appear with more complex features - Much later in the Earth's history, organisms with more complex structures and multicellularity began to evolve.
4. Much diversity between organisms: plants and animals exist together - The most recent stage in the sequence of events is characterized by a high diversity of life forms, including both plants and animals coexisting.

When considering the order of these events from oldest to youngest (as found in the layers of the Earth), we begin with 'no life on Earth' and end with the rich diversity of plants and animals that exist together.