Describes the RNA World hypothesis and how RNA could be responsible for the start of life on Earth (2:58).
Reviews metabolic pathways and nucleic acids.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
Astrobiologists have a variety of ways to look for life elsewhere in the universe.
Learn what happens to the human body when it experiences mild, moderate and severe dehydration.
Discusses the meaning of life from a scientific point of view, also causation and correlation.