Marine Biology, Exam 1 (Ch 1 - 5, 10) Study Guide
questions with correct answers
What is Marine Biology? Correct Answer-The study of organisms that
live in the sea.
What are the similarities and differences between Marine Biology and
Oceanography? Correct Answer-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.
Correct Answer-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).
Correct Answer-Satellite, Aircraft, Surface buoy, Ship-based, Genoic
sensor, etc.
,What is SONAR? ROVs? Correct Answer-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. Correct Answer-Cell phone
What are the steps of the scientific method? Correct Answer-
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. Correct Answer-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? Correct
Answer-(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? Correct Answer-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? Correct Answer-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) Correct Answer-CO2, takes
away CO3 2
What organisms will be directly affected by ocean acidification? What
organisms will be indirectly affected by it? Correct Answer-Lobsters,
clams, coral, sea urchins.
Everything People, sharks, fish, whales, penguins, dolphins.
Ultimately, what will likely happen if ocean acidification continues to
occur? Correct Answer-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 __________. Correct Answer-water food cleans shores
, storms
climate
oxygen
Ocean acidification is referred to as our other _______ problem. The
first is ___. Correct Answer-carbon
global warming
____ is a byproduct of burning fossil fuels. Correct Answer-Carbon
Dioxide
The ocean absorbs ____% of the carbon in the atmosphere. Correct
Answer-1/4 30%
If we continue to pollute as we are, the acidity of the ocean is predicted
to _____ by the end of the century. Correct Answer-double
Organisms create ____ by drawing molecules from the water around
them, but rising acidity depletes those molecules. Correct Answer-shells
By removing the essential building blocks of ______ formation, it is
making the organisms work a lot harder to build their _______. That
means they have less energy to get _____ and ________ and eventually
the organism can no longer compete ecologically. Correct Answer-shell
shells
