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AICE Marine Final Exam Review questions with correct answers.
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AICE Marine Final Exam Review questions with correct answers.
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AICE Marine Final Exam Review questions withcorrect answers
What are the steps to designing a laboratory based experiment? Correct
Answer--state amount of containers
-state constants (minimum of 3)
-state the amount of independent variable used.
-state how often you will be taking measurements
-state the duration
-state the method of calculating results (ex. counting or quadrant
method)
-state the repeat experimentation and calculate mean and average of all
trials)
What is needed to turn an experiment into a theory? Correct Answer--
rigorous testing
-repeated testing by many other scientists
-scientists get similar results.
Community Correct Answer-includes all the different species living in a
habitat at the same time for example, the mollusk community on the
rocky shore.
What do arrows in a food chain mean? Correct Answer-transfer of
energy and biomass.
,What is the energy source in most food webs? Correct Answer-Sunlight
What is the energy source at a hydrothermal vent ecosystem? Correct
Answer-Hydrogen Sulfide
What are the possible effects of upwelling on the organisms in a food
web? Correct Answer-Upwelling increases nutrients which increases
productivity meaning the number of producers and primary producers
and so on increase as well.
Shoaling Correct Answer-a large group of the same species of fish
swimming in a coordinated or synchronized way. ex.tuna
What are the benefits of shoaling? Correct Answer-Overall:
- easier to move through currents
-easier for navigation
-better chance of finding a mate therefore a better chance of
reproduction.
Benefits to the predator:
-more eyes to sense prey therefore a better chance at finding prey
-better chances at catching prey
Benefits to the prey:
-more eyes to spot predators
-less of a chance of being eaten
, -try to intimidate predators by disguising or appearing to be bigger than
they are.
-send out fear chemicals to warn others of predators
-confuse predators in bait balls
Succession Correct Answer-Tube worms. Tevnia first, then they are
replaced by Riftia.
What are characteristics of extreme environments? Correct Answer--low
pH
-high temp
-low oxygen
-high salinity
-limited resources
-ex. hydrothermal vents & chemosynthetic bacteria.
What is an unstable environment? Correct Answer--sandy environments
where their is sand slippage; organisms are easily washed away.
-organisms (like crabs, worms and mussels) burrow to avoid being
washed away, if they are exposed to air, desiccation can occur.
Chemosynthesis Correct Answer-the process by which chemical energy
(hydrogen sulfide) is used to synthesize/make/convert to glucose by
bacteria. ex. chemosynthetic bacteria
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