Answer:
Before life began on the planet, Earth's atmosphere was largely made up of nitrogen and carbon dioxide gases. After photosynthesizing organisms multiplied on Earth's surface and in the oceans, much of the carbon dioxide was replaced with oxygen.
Explanation:
please mark me as brinalist
Answer:
Protists are eukaryotic organisms that can be unicellular, colonial, or multicellular. They are called Archaea, a separate kingdom (even a separate domain). Almost everywhere like earth's crust, organic matters, water bodies, bodies humans and animals and so on. Archaea inhabit nearly every environment on earth, but no archaea have been identified as human pathogens. Unicellular: Archaebacteria, Eubacteria and Protista.
Explanation:
<span>Robert Hooke did this in 1665</span>
It is based on shared characteristics
