Eco Exam 2 Review

____ availability controls microbial activity that controls nitrogen transformations.

• heat

• moisture

• oxygen

• salt

16. In salt marshes, what determines the lower limit of plant species?

• a. Competition for nitrogen

• b. Flooding

• c. Anaerobic soils

• d. Predation

20. The limnetic zone of a lake is permanently flooded

• true

• false

2. What is the word for a landform that is formed by deposition of sediment carried by a river as the flow leaves its mouth and enters slower moving water?

• Delta

• Estuary

• Shoreline

• Seagrass meadow

10. Which of the following is an r-selected species

• a. Tortoise

• b. Alligator

• c. Sea turtle

• d. Tree frog

1. Which of the following is NOT a method for Carbon Dioxide Removal (CDR) in oceans?

• - Artificial upwelling/downwelling

• - Seaweed cultivation

• - Marine cloud brightening

• - Ocean alkalinity enhancement

3) In general, which trophic level has the most energy and biomass available?

• a) Secondary consumer

• b) Tertiary consumer

• c) Primary consumer

• d) Primary producer

17. In salt marshes, what determines the upper limit of plant species?

• a. Competition for nitrogen

• b. Flooding

• c. Anaerobic soils

• d. Predation

Which of the following is not a major factor that defines a wetland?

• Hydrology

• Soil

• Animals

• Vegetation

3 – There is carbon accumulation only if

• P/R = 1

• P/R < 1

• P/R > 1