OCEAN 102 Module 5 Questions and Answers 100% Correct
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Module
OCEAN 102
Institution
OCEAN 102
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 ...
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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