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A salmon migrates from the ocean to freshwater rivers to spawn. What is the freshwater environment ...
A salmon migrates from the ocean to freshwater rivers to spawn. What is the freshwater environment ...
A salmon migrates from the ocean to freshwater rivers to spawn. What is the freshwater environment like for the salmon?
 A) Hypertonic
  B) Hypotonic
  C) Isotonic
  D) None of these choices
Brapbrap   117   1 Reply
6 years ago
The North Atlantic gyre is composed of the Gulf Stream, the North Atlantic Current, the Canary ...
The North Atlantic gyre is composed of the Gulf Stream, the North Atlantic Current, the Canary ...
The North Atlantic gyre is composed of the Gulf Stream, the North Atlantic Current, the Canary Current, and the North Equatorial Current.
  Indicate whether the statement is true or false
sopmit   55   1 Reply
6 years ago
Most marine organisms are ____. (Multiple Choice)
Most marine organisms are ____. (Multiple Choice)
Most marine organisms are ____.
 A) metabolic
  B) endothermic
  C) ectothermic
  D) exothermic
panda_buhr   98   1 Reply
6 years ago
Geostrophic currents are primarily wind driven. (True or false?)
Geostrophic currents are primarily wind driven. (True or false?)
Geostrophic currents are primarily wind driven.
  Indicate whether the statement is true or false
emalay516   55   1 Reply
6 years ago
What organism usually fixes nitrogen into usable chemical forms?
What organism usually fixes nitrogen into usable chemical forms?
What organism usually fixes nitrogen into usable chemical forms?
 A) Archaea
  B) Extremophiles
  C) Cyanobacteria
  D) All of these choices
luciaf99   43   1 Reply
6 years ago
What is a heterotroph? (Multiple Choice)
What is a heterotroph? (Multiple Choice)
What is a heterotroph?
 A) An organism that creates its own food
  B) An organism that eat other organism
  C) An organism the conducts chemosynthesis
  D) An organism that remains plankton for its entire life
merandaae19   55   1 Reply
6 years ago
Antarctic Bottom Water flows ____ water in surface currents.
Antarctic Bottom Water flows ____ water in surface currents.
Antarctic Bottom Water flows ____ water in surface currents.
 A) about the same speed as
  B) slightly faster than
  C) much faster than
  D) much slower than
jkidane1829393   57   1 Reply
6 years ago
The main force driving thermohaline circulation is ____.
The main force driving thermohaline circulation is ____.
The main force driving thermohaline circulation is ____.
 A) wind
  B) the Coriolis effect
  C) density
  D) electromagnetic attraction
salsathief   74   1 Reply
6 years ago
What can increase the variation of genetic traits in a population?
What can increase the variation of genetic traits in a population?
What can increase the variation of genetic traits in a population?
 A) Mutations
  B) Adaptations
  C) Natural selection
  D) All of these choices
SapphireSmoke   65   1 Reply
6 years ago
Oceanographers name water masses according to their relative position. In temperate and tropical ...
Oceanographers name water masses according to their relative position. In temperate and tropical ...
Oceanographers name water masses according to their relative position. In temperate and tropical latitudes, there are ____ common water masses.
 A) three
  B) four
  C) five
  D) six
lexilourdes   54   1 Reply
6 years ago
What is a more accurate term for the feeding relationship of organisms?
What is a more accurate term for the feeding relationship of organisms?
What is a more accurate term for the feeding relationship of organisms?
 A) Food chain
  B) Food web
  C) Trophic chains
  D) Primary consumption
anvaridthe   77   1 Reply
6 years ago
What is the largest biogeochemical cycle?
What is the largest biogeochemical cycle?
What is the largest biogeochemical cycle?
 A) Global Carbon cycle
  B) Global Nitrogen cycle
  C) Global Phosphorus cycle
  D) Global Silicon cycle
hboydston   81   1 Reply
6 years ago
Surface water extends to a depth of about ____.
Surface water extends to a depth of about ____.
Surface water extends to a depth of about ____.
 A) 1,000 meters
  B) 600 meters
  C) 200 meters
  D) 50 meters
lindseyb1220   129   1 Reply
6 years ago
What is rarely a limiting factor for marine organisims?
What is rarely a limiting factor for marine organisims?
What is rarely a limiting factor for marine organisims?
 A) Salinity
  B) pH
  C) Hydrostatic pressure
  D) Nitrogen
Wutwut12   35   1 Reply
6 years ago
El Nio results due to an interruption of flow of the ____ Current in the Pacific.
El Nio results due to an interruption of flow of the ____ Current in the Pacific.
El Nio results due to an interruption of flow of the ____ Current in the Pacific.
 A) Kuroshio
  B) Equatorial
  C) Canary
  D) Antarctic Circumpolar
riveraes   31   1 Reply
6 years ago
What did Darwin suggest the driving force of evolution was?
What did Darwin suggest the driving force of evolution was?
What did Darwin suggest the driving force of evolution was?
 A) Reproduction
  B) Small genetic variation
  C) Isolation
  D) Large population size
Leikakei113   43   1 Reply
6 years ago
Surface winds normally move across most of the tropical Pacific in a(n) ____ direction.
Surface winds normally move across most of the tropical Pacific in a(n) ____ direction.
Surface winds normally move across most of the tropical Pacific in a(n) ____ direction.
 A) northeast
  B) west to east
  C) east to west
  D) northwest
bgzhoumi   46   1 Reply
6 years ago
What layer is permanently devoid of light?
What layer is permanently devoid of light?
What layer is permanently devoid of light?
 A) Photic zone
  B) Euphotic zone
  C) Disphotic zone
  D) Aphotic zone
sunil1285   59   1 Reply
6 years ago
Upwelling areas are ____. (Multiple Choice)
Upwelling areas are ____. (Multiple Choice)
Upwelling areas are ____.
 A) only found near the equator
  B) usually nutrient poor
  C) sometimes depleted of nutrients during El Nio years
  D) not affected by Ekman transport
applegatedogs   27   1 Reply
6 years ago
Which of these is commonly an effect of El Nio?
Which of these is commonly an effect of El Nio?
Which of these is commonly an effect of El Nio?
 A) A decline in the exotic species of fish and other forms of marine life in the affected waters
  B) A decrease in ocean surface temperature in the eastern Pacific
  C) A de
meganchambers8   40   1 Reply
6 years ago
There is a much faster nutrient cycling rate on land from producers to consumers than in the ocean. ...
There is a much faster nutrient cycling rate on land from producers to consumers than in the ocean. ...
There is a much faster nutrient cycling rate on land from producers to consumers than in the ocean.
  Indicate whether the statement is true or false
Kimstudies   82   1 Reply
6 years ago
One source of dissolved gases and nutrients to deep waters is ____.
One source of dissolved gases and nutrients to deep waters is ____.
One source of dissolved gases and nutrients to deep waters is ____.
 A) downwelling
  B) upwelling
  C) conduction
  D) Langmuir Circulation
Kimstudies   48   1 Reply
6 years ago
Archaea may be more closely related to Eukarya than Bacteria. (True or false?)
Archaea may be more closely related to Eukarya than Bacteria. (True or false?)
Archaea may be more closely related to Eukarya than Bacteria.
  Indicate whether the statement is true or false
keelyhawkins   49   1 Reply
6 years ago
Taxonomy is the study of biological classification schemes. (True or false?)
Taxonomy is the study of biological classification schemes. (True or false?)
Taxonomy is the study of biological classification schemes.
  Indicate whether the statement is true or false
salsathief   63   1 Reply
6 years ago
A system of ocean currents that circulate around the periphery of an ocean basin due to the forces ...
A system of ocean currents that circulate around the periphery of an ocean basin due to the forces ...
A system of ocean currents that circulate around the periphery of an ocean basin due to the forces of surface winds, the sun's heat, the Coriolis effect, and gravity is called ____.
 A) a cell
  B) a gyre
  C) a microscale
cattyson   102   1 Reply
6 years ago
All life on Earth is fundamentally the same. (True or false?)
All life on Earth is fundamentally the same. (True or false?)
All life on Earth is fundamentally the same.
  Indicate whether the statement is true or false
Madam   47   1 Reply
6 years ago
Which of the following is an eastern boundary current?
Which of the following is an eastern boundary current?
Which of the following is an eastern boundary current?
 A) Canary Current
  B) Kuroshio Current
  C) Gulf Stream
  D) North Equatorial Current
jaypatel432   52   1 Reply
6 years ago
Once living organisms reach a balance with their environment, they do not undergo any more natural ...
Once living organisms reach a balance with their environment, they do not undergo any more natural ...
Once living organisms reach a balance with their environment, they do not undergo any more natural selection.
  Indicate whether the statement is true or false
cristinaloayza   63   1 Reply
6 years ago
The largest of the western boundary currents is the ____.
The largest of the western boundary currents is the ____.
The largest of the western boundary currents is the ____.
 A) Gulf Stream
  B) California Current
  C) East Pacific Gyre
  D) Canary Current
Zoeyismycat   54   1 Reply
6 years ago
Although ectotherms can tolerate large ranges in external temperature, they are unable to sustain ...
Although ectotherms can tolerate large ranges in external temperature, they are unable to sustain ...
Although ectotherms can tolerate large ranges in external temperature, they are unable to sustain large fluctuations in their internal temperatures.
  Indicate whether the statement is true or false
anvaridthe   41   1 Reply
6 years ago
A small cell having a high surface-to-volume ratio is more efficient than a large cell with a high ...
A small cell having a high surface-to-volume ratio is more efficient than a large cell with a high ...
A small cell having a high surface-to-volume ratio is more efficient than a large cell with a high volume-to-surface ratio.
  Indicate whether the statement is true or false
meganchambers8   59   1 Reply
6 years ago
Which ocean surface current transports the greatest volume of water?
Which ocean surface current transports the greatest volume of water?
Which ocean surface current transports the greatest volume of water?
 A) The Kuroshio (or Japan) Current
  B) The North Equatorial Current in the Pacific
  C) The South Equatorial Current in the Pacific
  D) The
lexilourdes   67   1 Reply
6 years ago
Chemosynthesis is the main method of binding energy into carbohydrates on the planet. Indicate ...
Chemosynthesis is the main method of binding energy into carbohydrates on the planet. Indicate ...
Chemosynthesis is the main method of binding energy into carbohydrates on the planet.
  Indicate whether the statement is true or false
lindseyb1220   32   1 Reply
6 years ago
The trace metal iron is required for photosynthesis and nitrogen fixing enzymes. (True or false?)
The trace metal iron is required for photosynthesis and nitrogen fixing enzymes. (True or false?)
The trace metal iron is required for photosynthesis and nitrogen fixing enzymes.
  Indicate whether the statement is true or false
sopmit   47   1 Reply
6 years ago
Phytoplankton is responsible for the synthesis of 90 to 96 of the surface ocean's carbohydrates. ...
Phytoplankton is responsible for the synthesis of 90 to 96 of the surface ocean's carbohydrates. ...
Phytoplankton is responsible for the synthesis of 90 to 96 of the surface ocean's carbohydrates.
  Indicate whether the statement is true or false
joewalcott24   37   1 Reply
6 years ago
The Canary Current is an example of a ____.
The Canary Current is an example of a ____.
The Canary Current is an example of a ____.
 A) shallow, cold water current
  B) deep, cold water current
  C) warm, southerly current
  D) mesopelagic current
ibukunsulie85   89   1 Reply
6 years ago
Linnaeus was the first to start classifying organisms. (True or false?)
Linnaeus was the first to start classifying organisms. (True or false?)
Linnaeus was the first to start classifying organisms.
  Indicate whether the statement is true or false
ibukunsulie85   34   1 Reply
6 years ago
Generally, the fastest and deepest ocean currents are ____.
Generally, the fastest and deepest ocean currents are ____.
Generally, the fastest and deepest ocean currents are ____.
 A) northern boundary currents
  B) eastern boundary currents
  C) western boundary currents
  D) southern boundary currents
nurse12   54   1 Reply
6 years ago
Freshwater animals exert large amounts of energy to transport water from their tissues back to the ...
Freshwater animals exert large amounts of energy to transport water from their tissues back to the ...
Freshwater animals exert large amounts of energy to transport water from their tissues back to the outside because they are hypertonic to their surroundings.
  Indicate whether the statement is true or false
cristinaloayza   47   1 Reply
6 years ago
The only ocean current that continues in an uninterrupted circle around the circumference of Earth ...
The only ocean current that continues in an uninterrupted circle around the circumference of Earth ...
The only ocean current that continues in an uninterrupted circle around the circumference of Earth without encountering land is the ____.
 A) Gulf Stream
  B) Kuroshio, or Japan, Current
  C) Antarctic Circumpolar Current
Wutwut12   137   1 Reply
6 years ago
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