What observation of extrasolar planetary systems provides strong confirmation of the condensation theory?
What will be an ideal response?
Question 2
Which observation(s) and/or experiment(s) demonstrate ways that the chemical building blocks of life (amino acids and DNA bases) could have originated on the early Earth?
A) Amino acids and DNA bases form from simple chemical reactions in experiments simulating the early Earth atmosphere.
B) These complex molecules have been found within meteorites.
C) Experiments have shown that naturally occurring clays can catalyze the formation of RNA strands.
D) All of the above
A taxonomy of primate social systems. Larger symbols indicate adults.
Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into
Systems and Organs of the Human Body
Summary of Homologous Structures of the Female and Male Reproductive Systems
Quick confirmation
A comparison of political systems