What other recent hypotheses would corroborate the hypothesis that life on Earth originated in space? (Choose all that apply.)
A) amino acids forming DNA
B) meteorites containing amino acids
C) cometary impacts as the source of water on Earth
D) early aerobic organisms created the oxygen in Earth's atmosphere
E) the fossil record showing how biological organisms on Earth have changed over time
Question 2
The Tully-Fisher relation exists between the galaxy's luminosity and its:
A) color.
B) age.
C) rotation.
D) mass.
E) size.
Is there anything in life that is permanent, or is the world constantly changing?
Life cycle of Entamoeba histolytica.
Effects of Earth’s Changing Orientation: Solar Angle
Controlled Scientific Experiments Scientists use experimental research to test hypotheses
Escape Speed from Earth
Life cycle of a club fungus having two mating strains of hyphae