Use the following to answer questions 1-4. The figure shows a generalized cross

Question

Use the following to answer questions 1-4. The figure shows a generalized cross section of the marine environment with various zones labeled with numbers. Which area is most likely to contain the rare primary producers that are not photosynthetic? A) 1 B) 2 C)3 D) 4 E) None of the above. Suppose you measured the GPP of each zone over a 10-year period. Which zone would have the largest GPP per unit volume over that time period? A) 1 B) 2 C) 3 D) 4 E) They all would have equivalent GPP per unit volume. Which area is contains the most primary producers, in terms of biomass? A) 1 B) 2 C) 3 D) 4 E) Both A and B contain the equal amounts. 4. As ocean levels rise due to the melting of polar ice, which zone of the salt-water aquatic environment is likely to display the largest increase is size, expressed as a percentage of total change A) 1 B) 2 C) 3 D) 4 E) All of the zones will increase similarly.

Explanation / Answer

1. A the photic zone

2.A the activity will be goin on in the entire ocean ecosystem which will include many food chains and webs interlinked in the ocean.

3. A this photic zone will be having the maximum primary producers and hence the biomass also will be more.

4.E when the ice cap melts, the water is distributed and the levels are changed according to calculation in meters from the photic zone to benthic zone.

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