Exam (elaborations)
AICE Marine Science Exam Review Questions and Answers
- Course
- Institution
AICE Marine Science Exam Review Questions and Answers
[Show more]
Content preview
AICE Marine Science Exam ReviewQuestions and Answers
What is meant by the term succession? Using an artificial reef and a coastline
contaminated by an oil spill; which would illustrate a better example of primary
succession and which for secondary succession? Why? - Answer -The process by
which a plant or animal community successively gives way to another until a stable
climax is reached.
Primary: Artificial reef.
Secondary: Coastline contaminated by an oil spill.
What is meant by the term trophic level and what are the five standard levels called? In
addition which has the highest amount and lowest amount of available energy? -
Answer -Trophic level = energy.
5 Standard Levels:
1. Primary Producers, 2. Primary Consumers, 3. Secondary Consumers, 4. Tertiary
Consumers, 5. Quaternary Consumers.
Levels of Available Energy:
Highest: Primary Producers, Lowest: Quaternary Consumers.
Contrast the difference between up-welling and down-welling coastal zones as it applies
to productivity. Explain why. - Answer -Upwelling: Higher productivity (Cold water, high
in O2, high in nutrients).
Downwelling: Lower productivity. (Warm water, low in O2, low in nutrients).
Suggest two major reasons for why coral reef cover is drastically declining on a global
scale. - Answer -#1: Ocean Acidification.
#2: Pollution.
Why do coral reefs need low turbidity conditions as well as a hard substrate to thrive? -
Answer -Hard substrates: Act as a stabilizer (anchor).
Low turbidity: Clarity of water, allows for more photosynthesis (allows more sunlight to
penetrate surface).
Provide an explanation as to why 90% of the productivity of the primary producers is not
carried over to the productivity of the primary consumers. - Answer -Energy decreases
as it moves up trophic levels because energy is lost as metabolic heat when the
organisms from one trophic level are consumed by organisms from the next level.
, Suggest two reasons why productivity of the primary producers is usually higher in
estuaries that are in pelagic zones. - Answer -1. There is more sunlight, allowing for
more productivity.
2. Higher nutrient levels.
If you were cultivating algae to be used as food for tilapia aquaculture what would you
think would be the three most important abiotic factors that would need to be focused
on. - Answer -1. Temperature.
2. Light intensity.
3. Dissolved oxygen.
Explain what is meant by a limiting nutrient. What would be an excellent example of a
limiting nutrient in the neretic zones and which would be in pelagic zones. - Answer -
The limiting nutrient would be the compound that will have limited availability and thus
control the rate of producer productivity.
Neretic: Phosphates.
Pelagic: Iron Compounds.
Explain why viviparous propagules are an evolutionary advantage for the red
mangroves. - Answer -When the propagules drop into the water already germinated,
there is a much higher survival rate for.
Explain why up-welling coastal zones are very high in productivity. - Answer -Cold water
containing large amounts of oxygen (O2) and nutrients rises, increasing productivity.
How do El Ninos impact up-welling coastal zones off California? Describe two impacts
on marine ecosystems from El Ninos. - Answer -During an El Niño situation, when the
warm current appears, upwelling ceases and phytoplankton production is greatly
diminished and the fish move to colder regions farther south (or they starve).
Impacts on marine ecosystems:
1. Kelp forests suffer.
2. Many lifeforms starve.
Explain how a hurricane is able to produce a eutrophication event. - Answer -As a
hurricane continues on its path it collects nutrients and deposits them in other areas and
increases runoff leading to more nutrients which eventually result in a eutrophication
event (or bloom.)
What are three ecological services provided by seagrass growing in an estuary such as
the Indian River Lagoon? What are two economic services provided? - Answer -
Ecological: 1. Nursery, 2. Food source, 3. Reduce turbidity (allows for higher
productivity).
Economic: 1. Tourism, 2. Fishing.
Explain how poor agricultural practices result in a eutrophication event at the mouth of
rivers. What is this specific event known as? - Answer -This specific event is known as a
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now