Marine Biology Exam 1 (Ch 1 - 5, 10) Study Guide 100% Pass

Marine Biology Exam 1 (Ch 1 - 5, 10) Study Guide 100% Pass What is Marine Biology? The study of organisms that live in the sea. What are the similarities and differences between Marine Biology and Oceanography? Similarities: geology, chemistry, physics, meteorology, zoology, botany. Differences: Marine - study org. That inhabit sea. Oceanographers - study physical. (non-living) aspects of sea. Tides currents waves chemical makeup of sea water. Name and describe at least 6 reasons for studying Marine Biology. Live arose in the sea, provide clues about early life Products come from the sea, food, medicines from species, food resources, other items. Marine org. Produce oxygen used by all orgs. Marine environment provides recreation and tourism. The oceans regulate climate water is slow to change temp. Keep costal land masses more stable year round. Ocean absorbs much of our CO2 extremely important during this time of climate change. Name several tools used to observe the ocean (shown in Box 1.1 figure). Satellite, Aircraft, Surface buoy, Ship-based, Genoic sensor, etc. What is SONAR? ROVs? SONAR - Used to map seafloor depths and formations. ROV's - Remotely operated vehicles, allows for direct exploration of the marine environment when scuba is not an option. In the video, the "Teacher's Pet" used losing her ______ as an example to illustrate the scientific method. Cell phone What are the steps of the scientific method? Observation, Research, Hypothesis, Experiment, Conclusion, Share results. What is a hypothesis? It is impossible to "prove" a hypothesis. Why? Use the fish gill example to explain. A prediction of what you believe will occur. No you can only disprove, Hyp. Whales have gills, examine wales, no gills, lungs, disprove hypoth. Say you are a scientist that wants to find out how fast lobsters grow at different environmental variables. Which experiment would be more precise and more likely to lead you to a conclusion? Why? (a) 2 different groups of lobsters grown at different temperatures What is a scientific theory? What is the difference between a scientific theory and an "every day" theory? Scientific theory is a hypothesis that has been tested repetitively over time by many people and has not been disproven. Scientific theories have not been disproven, every day theories can be disproven What is ocean acidification? The decrease of the PH of the ocean (Decreased PH = more Acidic) What molecule causes ocean acidification? What molecule is taken away from certain organisms that need it? (This is the only chemistry part of ocean acidification I expect you to know) CO2, takes away CO3 2 What organisms will be directly affected by ocean acidification? What organisms will be indirectly affected by it? Lobsters, clams, coral, sea urchins. Everything People, sharks, fish, whales, penguins, dolphins. Ultimately, what will likely happen if ocean acidification continues to occur? Seashells could start to dissolve. The ocean is important because it provides us with _____, protects our coastline from ____, regulates ________, and provides us with most of our __________. water food cleans shores