Evidence from rocks allows us to understand the ????? of life on Earth.

The first forms of life on earth were

Movements of Earth's continental and oceanic plates through time, with associated changes in climate and geographic connections, have affected the past and present ...

The first vertebrates to evolve were

SImple, multicellular organisms like jellies and sponges evolved during

Earth has been around for about ____years.

Absolute ages of rocks and fossils can be found using

Used to determine relative age

The rock cycle includes the formation of new sediment and rocks and that are often found in layers, with the oldest generally on the ?????.

Mammals first appeared during the

Amphibians and Reptiles appeared during the

Independent lines of evidence from geology, fossils, and provide the bases for the theory of evolution.

????? of a species occurs when the environment changes and the adaptive characteristics of a species are insufficient for its survival.

This drives evolution since it can produce variation.

This Era is said to be the age of reptiles

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