Question 1

Define ecosystem management and briefly discuss how ecosystem experiments contribute to it.

Accepted Answer

The answer of Define ecosystem management and briefly discuss how...

Question 2

Match between columns
                        Premises: This process occurs in heterocysts

Accepted Answer

The Answer of Denitrification and Nitrogen fixation and Nitrification and is...

Question 3

Match between columns Premises: Converts NH₃ to NO₃^-

Accepted Answer

The Answer of Denitrification and Nitrification and Nitrogen fixation and is...

Question 4

Carbon does not cycle into the atmosphere.

Accepted Answer

Carbon cycles into the atmosphere primarily through processes such as respiration, decomposition, and the burning of fossil fuels, which release carbon dioxide (CO2) into the atmosphere.

Question 5

Match between columns
                        Premises: The process by which roots incorporate nitrogen into proteins, nucleic acids, and chlorophyll

Accepted Answer

The Answer of Denitrification and Nitrogen fixation and Assimilation and is...

Question 6

Match between columns
                        Premises: Converts nitrate to gaseous nitrogen

Accepted Answer

The Answer of Nitrogen fixation and Assimilation and Denitrification and is...

Question 7

Match between columns
                        Premises: This process occurs in root nodules

Accepted Answer

The Answer of Nitrification and Denitrification and Nitrogen fixation and is...

Question 8

Toxic chemicals introduced into the environment eventually enter food chains and food webs. In 1972, DDT (a chemical used to control mosquitoes) was banned in the United States because of its deleterious effects on the food chain and web. The processes that proved DDT to be hazardous also have shown that other substances, like heavy metals, are harmful to food chains and webs. Explain why heavy metals can have such far-reaching effects. Your answer should include the terms bioaccumulation, persistence, and biological magnification.

Accepted Answer

The answer of Toxic chemicals introduced into the environment eventually...

Question 9

Match between columns Premises: Converts N₂ to NH₃

Accepted Answer

The Answer of Nitrification and Denitrification and Assimilation and Nitrogen is...

Question 10

In the African savanna, fire helps maintain the dominant vegetation.

Accepted Answer

Fire plays a crucial role in the African savanna ecosystem by removing dead plant material, promoting new growth, and maintaining the balance between grasslands and forests, thus supporting the dominant vegetation.

Question 11

The most abundant gas in the atmosphere is oxygen.

Accepted Answer

The most abundant gas in the atmosphere is nitrogen, which makes up about 78% of the Earth's atmosphere, while oxygen makes up about 21%.

Question 12

Match between columns
                        Premises: Carried out by nitrifying bacteria

Accepted Answer

The Answer of Nitrogen fixation and Nitrification and Denitrification and is...

Question 13

Match between columns
                        Premises: The process by which animals convert plant nitrogen compounds into animal nitrogen compounds

Accepted Answer

The Answer of Nitrogen fixation and Assimilation and Nitrification and is...

Question 14

A rain shadow occurs in the dry lands on the sides of mountains facing the prevailing winds.

Accepted Answer

A rain shadow occurs in the dry lands on the leeward side of mountains, opposite the prevailing winds, where less precipitation falls.

Question 15

Match between columns
                        Premises: Rhizobium carries out this process

Accepted Answer

The Answer of Assimilation and Nitrification and Denitrification and Nitrogen is...

Question 16

The seasons are determined primarily by Earth's tilt.

Accepted Answer

The seasons are primarily determined by the tilt of Earth's axis relative to its orbit around the sun, causing different parts of the Earth to receive varying amounts of sunlight throughout the year.

Question 17

Match between columns
                        Premises: Returns gaseous nitrogen to the atmosphere

Accepted Answer

The Answer of Nitrogen fixation and Denitrification and Nitrification and is...

Question 18

Define an ENSO event and describe the conditions contribute to its occurrence. What effect does an ENSO event have on the global environment, and how does it manage to have such far-reaching impacts?

Accepted Answer

The answer of Define an ENSO event and describe the...

Question 19

Sketch the carbon cycle. Include the terms photosynthesis; plant and animal respiration; soil microorganism respiration; and decomposition. Indicate how human combustion activities upset the natural balance of the carbon cycle.

Accepted Answer

The answer of Sketch the carbon cycle. Include the terms...

Question 20

Diagram the hydrologic cycle. Include the terms evaporation, transpiration, percolation, groundwater, runoff, condensation, and precipitation.

Accepted Answer

The answer of Diagram the hydrologic cycle. Include the terms...

Quiz 55: Ecosystems and the Biosphere

Define ecosystem management and briefly discuss how ecosystem experiments contribute to it.

Match the component of the nitrogen cycle with its description.

Match the component of the nitrogen cycle with its description.

Carbon does not cycle into the atmosphere.

Match the component of the nitrogen cycle with its description.

Match the component of the nitrogen cycle with its description.

Match the component of the nitrogen cycle with its description.

Match the component of the nitrogen cycle with its description.

In the African savanna, fire helps maintain the dominant vegetation.

The most abundant gas in the atmosphere is oxygen.

Match the component of the nitrogen cycle with its description.

Match the component of the nitrogen cycle with its description.

A rain shadow occurs in the dry lands on the sides of mountains facing the prevailing winds.

Match the component of the nitrogen cycle with its description.

The seasons are determined primarily by Earth's tilt.

Match the component of the nitrogen cycle with its description.

Define an ENSO event and describe the conditions contribute to its occurrence. What effect does an ENSO event have on the global environment, and how does it manage to have such far-reaching impacts?

Sketch the carbon cycle. Include the terms photosynthesis; plant and animal respiration; soil microorganism respiration; and decomposition. Indicate how human combustion activities upset the natural balance of the carbon cycle.

Diagram the hydrologic cycle. Include the terms evaporation, transpiration, percolation, groundwater, runoff, condensation, and precipitation.