A biologically-influenced vertical profile of a plant nutrient in the ocean has
ID: 292628 • Letter: A
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A biologically-influenced vertical profile of a plant nutrient in the ocean has which shape? a. A straight vertical line from the surface to the bottom b. A straight line with c. A st 11. d. A curve psvle (high concentration at surface and low concentration at depth) d. A curve with low concentrations at the surface and high concentrations at depth. a negative slope (low concentration at surface and high concentration at depth) raight line with a positive slope co 12. Ichthyoplankton are: a. photosynthetic jelly fish b. planktonic forms of larval fish c. barnacles found in rocky intertidal areas d. symbiotic copepods Which one of the following is a process a. Chemosynthesis b. Active transport c. Diffusion 13 that creates carbohydrates from carbon dioxide using energy held in chemical bonds? d. Photosynthesis Which one the following carbohydrates? a. Autotrophs b. Biomass c. Phytoplankton d. Heterotrophs 14. must consume food from other organisms because they are unable to synthesize their own 15. The Redfield ratio (106:16:1) gives the molar ratio of which elements? a. Nitrogen:Phosphorus:Carbon b. Oxygen:Nitrogen:Silicon c. Carbon:Nitrogen:Phosphorus d. Phosphorus: Iron:Carbon e. Nitrogen:Iron:Oxygen 16. In the high-nutrient low-chlorophyll waters in the North Pacific, what is thought to limit phytoplankton production? a. Nitrogen b. Iron c. Phosphorus d. Carbon e. Light organism lives in the water column, whereas a organism lives on the ocean bottom. a. neritic, benthic b. pelagic, abyssal c. pelagic, benthic d. planktonic, nektonic 18. In general, the amount of carbon'fixed' in a unit volume per unit time; specifically, the number of grams of carbon bound into organic matter per cubic meter per year is known as what? a. chemosynthesis b. trophic transfer c. photosynthesis d. primary productivity The process whereby organisms liberate and utilize stored energy by degrading carbohydrates is known as: a. photosynthesis b. assimilation c. respiration d. chemoautotrophy 19.Explanation / Answer
12. Answer is option b.
Ichthyoplanktons are eggs and larvae of fish found at depth of less than 200 meters.
13. Answer is option D
Using photon as energy source chlorophyll in the autotrophic plants produces the carbohydrates using carbon dioxide.
15. Option C.
Redfield scientist conducted experiments and shown that the CNP in the phytoplanktons through out the world represent the similar ratio.
16. Option E is Light.
In the north Pacific ocean sunlight is short during 6 months of winter solstice.As a result there is less formation of chlorophyll containing phytoplanktons.
17 .
option C
18.
Option D Primary productivity is found in all autotrophic organism.
19. c respiration.
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