Approximately 2.2 billion years ago which gas was first added in large amounts to earth atmosphere from life forms that evolved in the oceans

Average annual precipitation and are the two major features that define the biomes on earth.

The phylogeny chart shows the evolution of camels. camelus is the modern-day camel. based on this chart, which three statements are true? ⭕ modern camels are more related to stenomylus than to eschatius. ⭕ stenomylous and modern camels do not share a common ancestor. ⭕ modern camels are more related to camelops than to aepycamelus. ⭕ pliauchenia and oxydactylus may share similar features. ⭕ procamelus and stenomylous may share similar features.

Variety of living organisms; includes genetic, species, and ecological types.