(02.06 MC) Trichodesmium is a nitrogen-fixing cyanobacteria. Why might this cyanobacteria be important to other organisms in nitrogen-poor waters? (3 points)

(02.06 LC) When glaciers melt, water is returned to groundwater storage by what means? (3 points)

(03.02 MC) Deep ocean anglerfish have special organs that utilize chemical energy to produce light that the fish uses to capture prey. The light is then lost to the fish. Explain why this phenomenon does not violate the Law of Conservation of Energy. (3 points)

(01.03 LC) If you were descending through the ocean zones in a submersible, which would be the first zone you encounter that is entirely without light? (3 points)

(01.01 MC) Astrology is the belief that the positioning of the stars and planets affect the way events occur on earth. Why is astrology not considered science? (3 points)

(01.01 LC) What is a scientific experiment? (3 points)

(01.01 MC) A scientist is studying a form of marine bacteria growing in culture dishes. He noticed that a clear area formed around the mold where the bacteria that had grown in this area died (this is now referred to as a zone of inhibition). In the culture dishes that had no mold, no zones of inhibition were present. Formulate a valid hypothesis based on his observations. (3 points) © 2016 Centers for Disease Control and Prevention

(01.04 LC) You are on a field trip and are recording the salinity levels of the water. What are you measuring? (3 points)

(01.04 MC) There are several properties of water that make Earth a suitable environment for life, including water’s high boiling point and high heat capacity. Which best explains why this characteristic of water is important for marine life? (3 points)

(03.01 MC) A newly formed volcanic island can trigger which process in an ocean ecosystem? (3 points)