(01.03 MC)Which of the following best describes how the first organic molecules on the early Earth may have been formed?

(02.06 LC)Which of the following correctly identifies the main function of photosynthesis?

(01.03 MC)The most significant outcome of the Miller and Urey experiments was that they

(02.02 MC)How does the use of a scanning electron microscope differ from that of a transmission electron microscope?

(02.01 MC)As liquid water freezes, the molecules arrange themselves in a way that takes up more space than liquid water. What would most likely occur if the arrangement of frozen water molecules required less space than that of liquid water molecules?

(01.02A MC)Based on what you know about life on Earth, what might scientists be most likely to look for on other planets with regard to living organisms?

(01.02A MC)All proteins have amino acids as their building blocks. Even though there are only 20 amino acids, there are more than a million different proteins, and each works in a unique way. Which of the following conclusions about a protein’s function is best supported by this information?

(02.02 MC)Rudolf Virchow’s work resulted in the claim that all cells come from preexisting cells. How did this impact the creation of cell theory?

(02.02 MC)Schleiden concluded all plants are made of cells and Schwann concluded the same thing about animals. Together, how did they contribute to cell theory?

(02.03 MC)Which of the following organelles is found in both plant and animal cells?