38. The oceanic zone is much less productive per square meter than the neritic zone because: (a) it does not receive enough sunlight (b) the nutrient level is so low (c) there are fewer organisms that live there (d) it is very cold. Which one of the following statements is NOT true of the neritic zone? (a) The water is relatively shallow. (b) The water extends beyond the continental shelf toward the open ocean. (c) It is the most productive zone in the ocean. (d) The water in this zone is nutrient rich from upwellings and runoff from the land. 39. 40. Large variations in salinity levels occur in: (c) the neritic zone (d) a swamp (e) an estuary.

38. The oceanic zone is much less productive per square meter than the neritic zone because: (a) it does not receive enough sunlight (b) the nutrient level is so low (c) there are fewer organisms that live there (d) it is very cold. Which one of the following statements is NOT true of the neritic zone? (a) The water is relatively shallow. (b) The water extends beyond the continental shelf toward the open ocean. (c) It is the most productive zone in the ocean. (d) The water in this zone is nutrient rich from upwellings and runoff from the land. 39. 40. Large variations in salinity levels occur in: (c) the neritic zone (d) a swamp (e) an estuary.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter46: Ecosystems

Section: Chapter Questions

Problem 3VCQ: Figure 46.17 Which of the following statements about the nitrogen cycle is false? Ammonification...

See similar textbooks

Similar questions

Pollutant released due to human activities (like effluents from industries and homes) can radically accelerate the ageing process of the water body .(a) Explain how does this process occurs during natural ageing of lake.(b) Give the term used for accelerated ageing of water bodies. Also give the term used for the natural ageing of lake.
Every type of organism in the upper ocean contributes to both recycling of organic matter and sinking of organic matter. Briefly describe 2 interactions between organisms that result in both the recycling and sinking of organic matter. a) Interaction 1: - Brief description of how this interaction results in both the recycling of organic matter in the upper ocean and the sinking of organic matter: b) Interaction 2: - Brief description of how this interaction results in both the recycling of organic matter in the upper ocean and the sinking of organic matter:.
1) dissolved inorganic carbon such as bicarbonate, is plentiful in the surface ocean. a- In one sentence, what is the biological pump? b- What must happen for dissolved organic carbon to get exported to the deep ocean via the biological pump? Describe at least 2 steps
The deep scattering layer is created by which of these: a) seasonal changes in the thermocline O b) mesopelagic nekton O c) abyssopelagic plankton O d) phytoplankton blooms
The term BOD (Biological Oxygen Demand): Group of answer choices is a measure of the organic matter and other oxygen-demanding wastes in a)a lake or stream. b)is the highest after a person eats a candy bar c)is defined as the amount of oxygen needed by fish to survive. d)is defined as the number of organisms that need oxygen in a stream. Next
Freshwater & Groundwater 1) A blocked-off meander 2) The shape of a stream that is being actively eroded 3) A triangular deposit that forms when a stream slows down as it meets the a) Delta b) Flood осean. c) Meander 4) All of the land area whose water drains into a stream system d) Oxbow Lake 5) A bend or curve in a stream channel 6) A underground storage of freshwater. 7) When water spills over the sides of a stream's banks e) V-shaped f) Watershed g) Aquifer
Which of the following could be an effect of an excess ofsewage running into a freshwater reservoir?(a) It could cause the water to become polluted and nonpo-table.(b) It could cause an increase in the biological oxygen de-mand (BOD).(c) It could cause oxygen depletion, leading to an increasein the anaerobic microbial population.(d) Large quantities of organic wastes could be left behind,killing off many plants and animals or causing animalsto migrate.(e) All of the above.
In the ocean, most organisms rely directly or indirectly on _________ as a food source. Question 9 options: A) microscopic shellfish B) yeast C) phytoplankton D) parasites
Few synthetic organic chemicals are dangerous in the very low concentrations in which they enter the ocean. How are these concentrations increased? What can be the outcome when these substances are ingested by organisms in a marine food chain?
The Norfolk Broads is an area of rivers and lakes in East Anglia. It is surrounded by farmland and has become a popular area for boating. During the course of this century the water has been polluted by the addition of sewage, animal wastes and fertilizers. This pollution has had a major effect on the ecology of the area. (a) Explain the part played by bacteria in converting organic matter in sewage to nitrate.
Figure 46.17 Which of the following statements about the nitrogen cycle is false? Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+). Denitrification by bacteria converts nitrates (NO3-) to nitrogen gas (N2). Nitrification by bacteria converts nitrates (NO3) to nitrites (NO2-). Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.
What are the consequences of having an excess of nutrientssuch as nitrates and phosphates running into a freshwater reser-voir in the process of eutrophication?(a) It could lead to an excess of algal and plant growth.(b) It could lead to a decrease in sunlight penetration andan increase in BOD.(c) It could lead to a long-standing rich and diverse growthof more plants and animals.(d) Both a and b.(e) Both b and c.