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OCEAN 102 Module 5 Questions and Answers 100% Correct

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OCEAN 102 Module 5 Questions and Answers 100% Correct What three things dictate the outcome of a stress event in coral reef ecosystems? - Answer-Who their parents were -- their base genetics. Who they partner with -- are they with the right type of microalgae? What their environmental history ...

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  • December 31, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ocean 102
  • ocean 102 module 5
  • ocean 102 module 5 questions and answers

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  • OCEAN 102

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OCEAN 102 Module 5 Questions and
Answers 100% Correct

What three things dictate the outcome of a stress event in coral reef ecosystems? -
Answer-Who their parents were -- their base genetics.
Who they partner with -- are they with the right type of microalgae?
What their environmental history has been.

Which of the following statements best describes what 'super corals' are? - Answer-
Super corals have a mechanism that allows them to be more tolerant to high
temperatures.

Which of the following are currently being used to restore coral reefs? Select all that
apply. - Answer-Reattaching coral fragments using cement or epoxy putty.
Transplanting coral fragments to protected reefs.
Growing corals in nurseries and 'planting' them out on reefs.
Research to engineer super corals to grow and transplant on reef.
NOT
pumping cold water
engineering cement reefs

TRUE or FALSE: All diatoms are circular in shape - Answer-False. Diverse shapes.

What group of phytoplankton gets its name from the Greek word for "whirling"? -
Answer-Dinoflagellates

What process is mediated by phytoplankton which results in the transfer of about 10
gigatonnes of carbon per year out of the atmosphere and into the deep ocean. -
Answer-Biological (carbon) pump

Diatoms have a characteristic encapsulating case called the frustule. What is the
frustule primarily composed of?` - Answer-Silica

What group of phytoplankton is believed to be responsible for transforming the Earth's
ancient atmosphere from a reducing environment (lacking oxygen) to and oxidized
environment? - Answer-Cyanobacteria. 3Billion years old.

, In temperate regions, what time of year tends to coincide with the largest annual
phytoplankton blooms? - Answer-Spring (late spring)

Phytoplankton are capable of synthesizing their own food using component nutrient
parts and sunlight. What word best describes this ability? - Answer-Photoautotrophic

Which group of phytoplankton is most at risk from ocean acidification? - Answer-
Coccolithophores

Which of these can cause Harmful Algal Blooms (HAB's)? - Answer-All of these:
Growth of toxic phytoplankton that produce neurotoxins
An overgrowth of phytoplankton that results in decreased oxygen from overwhelming
decomposition
Growth of phytoplankton that create nuisance foam

All Harmful Algal Blooms (HAB's) appear to change the water to what color? - Answer-
All of these:
green
brown
red

The process of ____________ is essentially just rampant microbial respiration of
organic material. - Answer-decomposition

Amnesic Shellfish Poisoning is caused by the ______________ toxin which is created
by a type of ______________. - Answer-domoic acid; diatom

The biological mechanism which uses oxygen to convert organic matter into cellular
energy is called: - Answer-aerobic respiration

Regions with no oxygen are called: - Answer-anoxic

TRUE or FALSE: Humans and higher mammals are exposed to HAB toxins when they
consume algae-based products. - Answer-False

TRUE or FALSE: Dead zones are low- or no- oxygen containing regions that are
completely devoid of life. - Answer-False

The hypoxic zone off the Oregon coast is primarily caused by: - Answer-upwelling of
CO2

What organism was responsible for the large bloom of toxic algae off the West Coast in
2015? - Answer-a diatom (because it's ASP) called pseudo-nitzschia

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