AICE Marine Science Review
Questions and All Correct Answers.
Outlining an Experiment - Answer -containers
-constants
-independent variable + amount
-duration and frequency of data collection
-result calculation (counting, quadrant method, etc)
-average calculation
-repeat and replicate experiment
What is needed for an experiment to turn into a theory? - Answer -Rigorous testing
-repeated testing by other scientists
- other scientists get similar results and the same conclusion
definition of symbiosis - Answer AICE defines symbiosis as mutualism. Close relationship
between two organisms where both benefit. Example such as coral/zooxenthellae or tube
worm/ chemosynthetic bacteria
explain trend seen in predator prey relationships - Answer the predator population lags
behind the prey population with lag time.
describe extreme environment - Answer -low pH
-high temperature
-low oxygen
-high salinity
-limited resources
-ex: hydrothermal vents
-ex of organism that can adapt: tube worm/ chemosynthetic bacteria
Describe unstable environment - Answer -Sandy environment where there is high erosion
-organisms that can adapt are crabs, worms, and mussels because they can burrow
-Exposed to air, so organism must adapt
What kind of niches do ares of high biodiversity have and why? - Answer Narrow niches
because of reduced competition. Narrow niche=reduced overlap=reduces competition
, Definition of niche, generalized niche, specialized niche - Answer Generalized-wide range of
food and habitat (shark)
Specialized-narrow food requirement and specific habitat (butterfly fish)
how is energy from the sun lost by producers - Answer -reflection off water surface
-inefficiencies in photosynthesis
-Not all wavelengths absorbed by producers/ light passes through organism
3 ways energy is lost from a food chain - Answer -heat/respiration/metabolism for point 1
-Egestion/ excretion for point 2
-Uneaten/ inedible parts for point 3
Define a nutrient - Answer Any substance assimilated by an organism to promote growth,
including organic and inorganic compounds such as phosphorus and nitrogen
How are nutrients replenished - Answer -Runoff from land
-Atmospheric Dissolution
-upwelling
How do nutrients enter food chains - Answer -Assimilated by producers and the consumed
How are nutrients lost from food chains - Answer -Excretion/waste
- when an organism dies and decomposes
-when an organism sinks to the sea floor
-harvesting by humans
What nutrients are limiting nutrients in an environment - Answer nitrate & phosphate
biological use of nitrogen - Answer to make proteins and amino acids
biological use of carbon - Answer to make glucose, dna, rna
biological use of magnesium - Answer to make chlorphyll
Questions and All Correct Answers.
Outlining an Experiment - Answer -containers
-constants
-independent variable + amount
-duration and frequency of data collection
-result calculation (counting, quadrant method, etc)
-average calculation
-repeat and replicate experiment
What is needed for an experiment to turn into a theory? - Answer -Rigorous testing
-repeated testing by other scientists
- other scientists get similar results and the same conclusion
definition of symbiosis - Answer AICE defines symbiosis as mutualism. Close relationship
between two organisms where both benefit. Example such as coral/zooxenthellae or tube
worm/ chemosynthetic bacteria
explain trend seen in predator prey relationships - Answer the predator population lags
behind the prey population with lag time.
describe extreme environment - Answer -low pH
-high temperature
-low oxygen
-high salinity
-limited resources
-ex: hydrothermal vents
-ex of organism that can adapt: tube worm/ chemosynthetic bacteria
Describe unstable environment - Answer -Sandy environment where there is high erosion
-organisms that can adapt are crabs, worms, and mussels because they can burrow
-Exposed to air, so organism must adapt
What kind of niches do ares of high biodiversity have and why? - Answer Narrow niches
because of reduced competition. Narrow niche=reduced overlap=reduces competition
, Definition of niche, generalized niche, specialized niche - Answer Generalized-wide range of
food and habitat (shark)
Specialized-narrow food requirement and specific habitat (butterfly fish)
how is energy from the sun lost by producers - Answer -reflection off water surface
-inefficiencies in photosynthesis
-Not all wavelengths absorbed by producers/ light passes through organism
3 ways energy is lost from a food chain - Answer -heat/respiration/metabolism for point 1
-Egestion/ excretion for point 2
-Uneaten/ inedible parts for point 3
Define a nutrient - Answer Any substance assimilated by an organism to promote growth,
including organic and inorganic compounds such as phosphorus and nitrogen
How are nutrients replenished - Answer -Runoff from land
-Atmospheric Dissolution
-upwelling
How do nutrients enter food chains - Answer -Assimilated by producers and the consumed
How are nutrients lost from food chains - Answer -Excretion/waste
- when an organism dies and decomposes
-when an organism sinks to the sea floor
-harvesting by humans
What nutrients are limiting nutrients in an environment - Answer nitrate & phosphate
biological use of nitrogen - Answer to make proteins and amino acids
biological use of carbon - Answer to make glucose, dna, rna
biological use of magnesium - Answer to make chlorphyll
