Cyanobacteria are single-celled organisms that led to the Great Oxygenation Event and paved the way for complex life. There was no free oxygen in the atmosphere 3.5 billion years ago and anaero...
Summary Within 2:43 minutes viewers are able to learn the three domains of life on Earth (Bacteria, Archaea and Eukarya) along with the four kingdoms (Protists, Plants, Fungi ...
Summary: This video helps viewers understand how continents were arranged before they looked like they do today. It explains how continents broke apart and came back to...
Summary This video begins by explaining how carbon dioxide (CO2) gets into our atmosphere, including the roles of photosynthesis and greenhouse gases in the carbon cycle. Th...