Exam 58: Ecosystems and Global Ecology

An increase in the rate at which oceans absorb carbon dioxide would likely lead to a(n) _______ in the pH of water and a(n) _______ in the rate at which corals are bleached.

The rate of movement, or _______, of an element between pools can vary considerably.

Less than half of the CO₂ released into the atmosphere by human activity remains in the atmosphere. The rest can be found in the oceans. What factors affect the cycling of CO₂ between the atmosphere and the ocean?

Which of the following statements about sustainable management is false?

Which of the following is an example in which the energy is/was not derived from solar radiation?

Which of the following environmental factors frequently limits primary production in both terrestrial and aquatic ecosystems?

Which of the following statements is true of oceans but not true of freshwater ecosystems?

Based on data in the graph from Question 3, the thermocline for the lake is located between _______ and _______ meters.

The rare element _______ is an important component of the antioxidant glutathione peroxidase.

Which of the following statements about oceans is true?

According to the current principles of sustainable fisheries, _______ fishes need the most protection.

Which of the following elements is an essential component of vitamin B₁₂?

Water that is heated from 1°C to 3°C will _______; water that is heated from 6°C to 10°C will _______.

Examples of incentives to encourage sustainable ecosystem management might include

The hydrologic cycle consists of the movement of _______ across different components of the physical environment.

Compared with the amount of natural nitrogen fix-ation that occurs globally, human industry fixes about _______ amount.

The pattern of movement made by a chemical element as it moves through organisms and the global ecosystem is called the _______ cycle.

In most of the ocean, the limiting factor for rates of photosynthesis is

_______ percent of Earth's annual production of carbon dioxide comes from the burning of biomass by fire.

How does the use of groundwater for irrigation alter the hydrological cycle?