Marine Science Final Exam with correct
Answers
All layers of the ocean have the same amount of oxygen. True or false - Answer -false
Why do marine scientists examine age structure? - Answer -it provides an insight to the
future of the species
How many species do marine scientists estimate have not yet been discovered in the
ocean? - Answer -500,000-2,000,000
Rarefaction is used for which of the following? - Answer -determining which sea
creatures live in an area
Natural selection only occurs in sea life. True or false - Answer -False
What does a high population density indicate? - Answer -Food supply is high and the
number of predators low.
Natural selection is often paraphrased as - Answer -survival of the fittest
The deep zone includes all of the following EXCEPT - Answer -bathypelagic zone
In the deepest zone of the ocean, water pressure is - Answer -8 tons per square inch
In most cases, bioluminescence is useful for - Answer -attracting prey
How do species that fill the same niche as each other survive in ecosystems? - Answer
-They adapt to fill slightly different niches.
An organism's niche is its - Answer -role in the food chain
Only one species benefits in commensalism, T or F - Answer -T
Which of the following is an example of biodiversity? - Answer -many different species
living together
Why are marine scientists particularly concerned about parasites in the blue crab
population? - Answer -Blue crabs are an important part of the region's economy
All adaptions are physical, T or F - Answer -F
Answers
All layers of the ocean have the same amount of oxygen. True or false - Answer -false
Why do marine scientists examine age structure? - Answer -it provides an insight to the
future of the species
How many species do marine scientists estimate have not yet been discovered in the
ocean? - Answer -500,000-2,000,000
Rarefaction is used for which of the following? - Answer -determining which sea
creatures live in an area
Natural selection only occurs in sea life. True or false - Answer -False
What does a high population density indicate? - Answer -Food supply is high and the
number of predators low.
Natural selection is often paraphrased as - Answer -survival of the fittest
The deep zone includes all of the following EXCEPT - Answer -bathypelagic zone
In the deepest zone of the ocean, water pressure is - Answer -8 tons per square inch
In most cases, bioluminescence is useful for - Answer -attracting prey
How do species that fill the same niche as each other survive in ecosystems? - Answer
-They adapt to fill slightly different niches.
An organism's niche is its - Answer -role in the food chain
Only one species benefits in commensalism, T or F - Answer -T
Which of the following is an example of biodiversity? - Answer -many different species
living together
Why are marine scientists particularly concerned about parasites in the blue crab
population? - Answer -Blue crabs are an important part of the region's economy
All adaptions are physical, T or F - Answer -F
