Which fossilized organisms are most likely found in Earth’s lowest layers of rock?(1 point)
Responses
dinosaurs
dinosaurs
snails
snails
bacteria
bacteria
reptiles
Bacteria
The oldest fossilized organisms found in Earth's lowest layers of rock are typically simple, single-celled organisms like bacteria. Bacteria have been present on Earth for most of its history, with the earliest fossil evidence dating back to at least 3.5 billion years ago. These primitive life forms existed long before more complex organisms like mollusks (e.g., snails), reptiles, and dinosaurs, which appeared much later in the geological record.