Which of the following is the most probable order of appearance of molecules and structures that led to the evolution of life on Earth?
A) Nucleic acids,proteins,membranes,cells B) Proteins,membranes,nucleic acids,cells C) Membranes,nucleic acids,proteins,cells D) Cells,membranes,nucleic acids,proteins E) Proteins,cells,nucleic acids,membranes
Suppose you were leading a team looking for extraterrestrial life on distant planets.You find something that you suspect might be a living organism.Which characteristic would be a requirement in order for it to be classified as a living organism?
A) Ability to self-replicate B) Genetic material in the form of DNA C) Cellular structure that includes a nucleus D) Ability to transform energy from the sun through photosynthesis E) Aerobic metabolism