'Earth conditions' diaporamas de présentation

Chapter 4 Review

Chapter 4 Review. The hypothesis of Panspermia proposes that meteors or cosmic dust may have brought ____________ to Earth. Eukaryotic, mostly unicellular (few multicellular), photosynthetic or heterotrophic, such as amoebas and algae, are classified into a kingdom called _____________________.

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Evidence of the Past

Fossils & the Geologic Time Scale. Evidence of the Past . Fossils. Traces or imprints of any living things; physical evidence of an organism preserved by geological processes Animals, plants, bacteria, fungi Show us how life on Earth has changed

298 views • 12 slides

Phosphorous Cycle

290 views • 10 slides