Marine Biology Final Exam-
Accurate Questions with Correct
Detailed Solutions | Latest Updated
Version | High Pass Success
Prepare effectively and boost your confidence with this Premium Final Exam Study Guide,
designed to help students review important concepts, strengthen understanding, and improve
overall exam performance.
This comprehensive resource contains accurate exam-style questions with correct detailed
solutions, carefully organized to reflect commonly tested topics and real exam standards. Each
solution includes clear explanations to help simplify difficult concepts, reinforce learning, and
improve problem-solving skills.
The guide is structured in an easy-to-follow format that supports both early preparation and last-
minute revision, making studying more efficient and less stressful.
🔥 Key Highlights
✔ Accurate exam questions covering essential topics
✔ Correct detailed solutions with clear explanations
✔ Focused review of frequently tested concepts
✔ Simple and organized structure for fast revision
✔ Latest updated version for reliable exam preparation
🚀 Why Students Prefer This Guide
• Helps improve understanding of key concepts
• Supports efficient and effective revision
• Strengthens confidence before exams
• Provides realistic exam-style practice
• Helps identify and improve weak areas
,🎯 Perfect For
• Final exam preparation
• Midterm and course revision
• Last-minute study sessions
• Practicing exam-style questions
• Improving overall academic performance
📚 A trusted and practical study resource designed to help students prepare smarter, stay
confident, and achieve exam success.
Marine Biology Final Exam
What is the progression of studies regarding investigating Bray Calls
1. Does Bray production correlate with feeding responses from conspecifics or does it
manipulate prey? ->
2. Is Bray production associated with feeding? ->
3. Do Bray calls have a social function? ->
4. Do Bray calls manipulate prey? ->
5. Do Bray sequences differ between locations what makes a bray a bray - future
studies?
For the first study, on Bray calls manipulating prey behaviour what were the
methods and things measured?
- Passive Acoustic Localization System or monitoring = the main technology that allows
the study to occur
Passive Acoustic Monitoring and Localization Systems
Heard Bray Call at a particular position,
1. Look at the total number of fast swims on the surface before and after the Bray call
produced by a specific animal
2. Looks at the number of 15s periods where surface animals where fast moving
occured, either towards the animal producing the bray or at the position of the animal.
Fast swims are needed to prepare to catch prey.
Conclusions to be drawn from the first study
- Although the paper concludes that brays are used to manipulate prey behaviour rather
than attract conspecifics
- Behavioural evidence primarily supports that Brays are food-associated signals that
elicit responses from other conspecifics.
For the second study - methods and things measured?
,- Vertical 4-Hydrophone Array to determine the different positions of individual dolphins
in groups diving from the surface to the seabed and back up to the surface
- Able to track the depth at which brays were produced
- Produced mainly at 20-30 m where prey capture is likely to occur
Second study conclusion
Brays occur at a depth of 20-30 m which is where prey usually exists in the water
column
Dolphins dive from surface to the seabed and back up
Shortly after producing brays, dolphins surface usually with fish in their mouths at the
waters surface after diving in
Thus, Brays are associated with prey capture
Do Bray calls have a social function - the third research article's methods? What
is measured?
Jannik is investigating whether whistle matching occurs in close proximity to bray calls -
using other social signals along with food calls to share info about food patches?
Measures whistles and bray calls over time and sees overlapping between the two
Rapid matching of call types analyzing respective frequencies
Conclusion of the third research article - Bray and social aspects
Due to rapid matching of call types - there is a social aspect of Brays to food calling
Likely they are attracting conspecifics
Fourth Study - Do Brays manipulate salmon behaviour? What were the methods
Play Bray calls to salmon in a loch to see if there is any reactoin of the animals to the
call
Conclusions of the fourth study - Bray calls and prey behaviour
Salmon did not respond - but needs to be replicated in a more accurate environment as
the Bray could be lacking directionality.
Do Bray call sequences differ between locations? What will need to be
measured?
Listening to different sequences of Brays based on the location of the pods
Technical - could be investigated is the structuring of these sound types - how do we
know a bray is a bray investigating frequencies etc.
What are the two hypothesis that Jannik generated about the functions of the
bray calls?
1. Brays are a dinner bell to attract conspecifics
2. The Bray acts to manipulate prey behaviour - this is what Jannik proposed, does it
stun the fish?
What is included in the microbes definition?
Virus, Bacteria, Fungi, and Protists (Larger size of an animal cell)
Why is it important to look at microbes?
, - The majority of the Earth is ocean/sea water
- Taking a fluorescent image of seawater usually shows there are 1 billion bacteria and
10 billion viruses
- They are constantly being recycled due to competition
How did Microbes change the world?
The great oxidation event -> cyanobacteria -> algae, which can only survive at 20% atm
O2 and are sensitive to lower oxygen
What is remineralizing
Converting organic matter back to its inorganic components - this can be done by
marine and terrestrial microbes and releases CO2
Microbes can also capture CO2
Explain the biological and microbial loop / pump
The microbial loops are the decomposition and production of CO2 by microbes
Biological Cycle:
CO2 is captured at a specific concentration by phytoplankton, which has three outputs
-> consumed by zooplankton (carbon also consumed) -> converted to DOC (Dissolved
organic carbon)
-> removed as DOC
-> removed as POC (Particulate organic carbon)
Microbial Cycle ->
Bacteria can fix DOC in two ways:
DOC -> Bacteria remove carbon as CO2
DOC-> bacteria die as organic carbon matter known as Refractory Carbon (RDOC)
which cannot be used and creates a carbon sink.
How can ocean microbes solve global warming?
What is a biofilm?
A biofilm is a population of bacteria that adheres to a surface and is also enclosed in a
matrix.
How do Biofilms form?
1. A Few cells adhere to the surface
2. The cells create a monolayer
3. The population of bacteria adhering to the surface and creating a monolayer grows
and "sheds" or falls down with accumulation traveling across the surface
4. Bacterial cells travel to the space between layers like sand or rock, each grain or rock
is a substrate
Microaggregate -> microcolony -> monolayer
-> multilayer -> mushrooms and streamers -> microbial mat
Accurate Questions with Correct
Detailed Solutions | Latest Updated
Version | High Pass Success
Prepare effectively and boost your confidence with this Premium Final Exam Study Guide,
designed to help students review important concepts, strengthen understanding, and improve
overall exam performance.
This comprehensive resource contains accurate exam-style questions with correct detailed
solutions, carefully organized to reflect commonly tested topics and real exam standards. Each
solution includes clear explanations to help simplify difficult concepts, reinforce learning, and
improve problem-solving skills.
The guide is structured in an easy-to-follow format that supports both early preparation and last-
minute revision, making studying more efficient and less stressful.
🔥 Key Highlights
✔ Accurate exam questions covering essential topics
✔ Correct detailed solutions with clear explanations
✔ Focused review of frequently tested concepts
✔ Simple and organized structure for fast revision
✔ Latest updated version for reliable exam preparation
🚀 Why Students Prefer This Guide
• Helps improve understanding of key concepts
• Supports efficient and effective revision
• Strengthens confidence before exams
• Provides realistic exam-style practice
• Helps identify and improve weak areas
,🎯 Perfect For
• Final exam preparation
• Midterm and course revision
• Last-minute study sessions
• Practicing exam-style questions
• Improving overall academic performance
📚 A trusted and practical study resource designed to help students prepare smarter, stay
confident, and achieve exam success.
Marine Biology Final Exam
What is the progression of studies regarding investigating Bray Calls
1. Does Bray production correlate with feeding responses from conspecifics or does it
manipulate prey? ->
2. Is Bray production associated with feeding? ->
3. Do Bray calls have a social function? ->
4. Do Bray calls manipulate prey? ->
5. Do Bray sequences differ between locations what makes a bray a bray - future
studies?
For the first study, on Bray calls manipulating prey behaviour what were the
methods and things measured?
- Passive Acoustic Localization System or monitoring = the main technology that allows
the study to occur
Passive Acoustic Monitoring and Localization Systems
Heard Bray Call at a particular position,
1. Look at the total number of fast swims on the surface before and after the Bray call
produced by a specific animal
2. Looks at the number of 15s periods where surface animals where fast moving
occured, either towards the animal producing the bray or at the position of the animal.
Fast swims are needed to prepare to catch prey.
Conclusions to be drawn from the first study
- Although the paper concludes that brays are used to manipulate prey behaviour rather
than attract conspecifics
- Behavioural evidence primarily supports that Brays are food-associated signals that
elicit responses from other conspecifics.
For the second study - methods and things measured?
,- Vertical 4-Hydrophone Array to determine the different positions of individual dolphins
in groups diving from the surface to the seabed and back up to the surface
- Able to track the depth at which brays were produced
- Produced mainly at 20-30 m where prey capture is likely to occur
Second study conclusion
Brays occur at a depth of 20-30 m which is where prey usually exists in the water
column
Dolphins dive from surface to the seabed and back up
Shortly after producing brays, dolphins surface usually with fish in their mouths at the
waters surface after diving in
Thus, Brays are associated with prey capture
Do Bray calls have a social function - the third research article's methods? What
is measured?
Jannik is investigating whether whistle matching occurs in close proximity to bray calls -
using other social signals along with food calls to share info about food patches?
Measures whistles and bray calls over time and sees overlapping between the two
Rapid matching of call types analyzing respective frequencies
Conclusion of the third research article - Bray and social aspects
Due to rapid matching of call types - there is a social aspect of Brays to food calling
Likely they are attracting conspecifics
Fourth Study - Do Brays manipulate salmon behaviour? What were the methods
Play Bray calls to salmon in a loch to see if there is any reactoin of the animals to the
call
Conclusions of the fourth study - Bray calls and prey behaviour
Salmon did not respond - but needs to be replicated in a more accurate environment as
the Bray could be lacking directionality.
Do Bray call sequences differ between locations? What will need to be
measured?
Listening to different sequences of Brays based on the location of the pods
Technical - could be investigated is the structuring of these sound types - how do we
know a bray is a bray investigating frequencies etc.
What are the two hypothesis that Jannik generated about the functions of the
bray calls?
1. Brays are a dinner bell to attract conspecifics
2. The Bray acts to manipulate prey behaviour - this is what Jannik proposed, does it
stun the fish?
What is included in the microbes definition?
Virus, Bacteria, Fungi, and Protists (Larger size of an animal cell)
Why is it important to look at microbes?
, - The majority of the Earth is ocean/sea water
- Taking a fluorescent image of seawater usually shows there are 1 billion bacteria and
10 billion viruses
- They are constantly being recycled due to competition
How did Microbes change the world?
The great oxidation event -> cyanobacteria -> algae, which can only survive at 20% atm
O2 and are sensitive to lower oxygen
What is remineralizing
Converting organic matter back to its inorganic components - this can be done by
marine and terrestrial microbes and releases CO2
Microbes can also capture CO2
Explain the biological and microbial loop / pump
The microbial loops are the decomposition and production of CO2 by microbes
Biological Cycle:
CO2 is captured at a specific concentration by phytoplankton, which has three outputs
-> consumed by zooplankton (carbon also consumed) -> converted to DOC (Dissolved
organic carbon)
-> removed as DOC
-> removed as POC (Particulate organic carbon)
Microbial Cycle ->
Bacteria can fix DOC in two ways:
DOC -> Bacteria remove carbon as CO2
DOC-> bacteria die as organic carbon matter known as Refractory Carbon (RDOC)
which cannot be used and creates a carbon sink.
How can ocean microbes solve global warming?
What is a biofilm?
A biofilm is a population of bacteria that adheres to a surface and is also enclosed in a
matrix.
How do Biofilms form?
1. A Few cells adhere to the surface
2. The cells create a monolayer
3. The population of bacteria adhering to the surface and creating a monolayer grows
and "sheds" or falls down with accumulation traveling across the surface
4. Bacterial cells travel to the space between layers like sand or rock, each grain or rock
is a substrate
Microaggregate -> microcolony -> monolayer
-> multilayer -> mushrooms and streamers -> microbial mat
