Podcast
Questions and Answers
What is the main difference between Marine Biology and Oceanography?
What is the main difference between Marine Biology and Oceanography?
- Marine Biology measures salinity using a hydrometer, while Oceanography uses a different tool.
- Marine Biology studies life in the ocean, while Oceanography studies the physical characteristics of the ocean. (correct)
- Marine Biology studies freshwater ecosystems, while Oceanography studies saltwater ecosystems.
- Marine Biology focuses on icebergs melting, while Oceanography focuses on salt runoff.
What does salinity measure in water?
What does salinity measure in water?
- The density of the water
- The pressure of the water
- The amount of salt dissolved in the water (correct)
- The temperature of the water
How is salinity expressed?
How is salinity expressed?
- As a percentage or parts per thousand (correct)
- In grams per liter
- As a ratio of water to salt
- In milliliters per liter
What is the most common salt dissolved in ocean water?
What is the most common salt dissolved in ocean water?
Which process decreases both salinity and density of water?
Which process decreases both salinity and density of water?
What tool is used to measure salinity by determining the density of water?
What tool is used to measure salinity by determining the density of water?
What is the classification for organisms that can swim against currents?
What is the classification for organisms that can swim against currents?
Which type of plankton performs photosynthesis?
Which type of plankton performs photosynthesis?
What percentage of Earth's oxygen is estimated to be produced by phytoplankton?
What percentage of Earth's oxygen is estimated to be produced by phytoplankton?
Which type of plankton is mainly composed of eggs and larvae of invertebrates?
Which type of plankton is mainly composed of eggs and larvae of invertebrates?
What do zooplankton primarily perform within the marine ecosystem?
What do zooplankton primarily perform within the marine ecosystem?
What is the main reason phytoplankton must live in the photic zone?
What is the main reason phytoplankton must live in the photic zone?
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