BIO 112 chapter 28 Exam Questions and Verified Answers/Accurate Solutions| Already
Graded A+
Farmers often include legumes as part of their normal crop rotation. This practice increases the
overall production of their crops by adding nitrogen to the soil
Carbon dioxide and other greenhouse gases cause Earth's temperature to increase by
absorbing heat energy and holding it close to Earth
Forests along rivers in the Pacific Northwest that have lost their salmon populations are less
productive because: the nitrogen the fish brought from the ocean and contained in their
tissues has been lost.
Autotrophs gain energy from the sun and inorganic nutrients
Burning coal and oil to release energy also releases ________, which are overloading Earth's
nutrient cycles. sulfur, carbon, and nitrogen
Which of the following components is NOT involved in the phosphorus cycle the
atmosphere
A deer that gets its energy from eating plants is a(n): herbivore.
Acid precipitation is the result of interference with the ________ cycles XXX hydrologic and
nitrogen
Nitrogen fixation is the synthesis of ammonia from nitrogen gas by certain bacteria
Organisms that must rely on complex, high-energy molecules produced by other organisms for
survival are: heterotrophs
, Micronutrients: are needed in smaller quantities than macronutrients but are just as
essential.
The greenhouse effect is the ability of certain gases to retain solar radiation as heat energy.
If you are attempting to minimize the amount of mercury in your diet, you should eat
producers like fruits and vegetables.
When you observe a lake that has been affected by acid deposition, you might expect to find:
XXX mercy lake...
high level dissolved sulfur dio
Phosphorus, which is often a limiting nutrient in ecosystems, is very important because it: is
needed for molecules such as ATP, cell membranes, and nucleic acids.
Chemicals that mimic the effect of reproductive hormones are: endocrine disruptors
If the plants in a community produce 500 grams of organic matter per square meter per year
that is available for animals in the community to eat, this amount of energy is known as the:
net primary productivity of the community.
Certain bacteria and fungi that are important in nutrient recycling because they release
nutrients from dead organisms back into the ecosystem are: decomposers
In open-water marine ecosystems, the ________ occupy the same trophic level as the giant
sequoias (redwoods) in the forests of California microscopic, single-celled algae (protists)
called phytoplankton ("plant-like drifters")
Graded A+
Farmers often include legumes as part of their normal crop rotation. This practice increases the
overall production of their crops by adding nitrogen to the soil
Carbon dioxide and other greenhouse gases cause Earth's temperature to increase by
absorbing heat energy and holding it close to Earth
Forests along rivers in the Pacific Northwest that have lost their salmon populations are less
productive because: the nitrogen the fish brought from the ocean and contained in their
tissues has been lost.
Autotrophs gain energy from the sun and inorganic nutrients
Burning coal and oil to release energy also releases ________, which are overloading Earth's
nutrient cycles. sulfur, carbon, and nitrogen
Which of the following components is NOT involved in the phosphorus cycle the
atmosphere
A deer that gets its energy from eating plants is a(n): herbivore.
Acid precipitation is the result of interference with the ________ cycles XXX hydrologic and
nitrogen
Nitrogen fixation is the synthesis of ammonia from nitrogen gas by certain bacteria
Organisms that must rely on complex, high-energy molecules produced by other organisms for
survival are: heterotrophs
, Micronutrients: are needed in smaller quantities than macronutrients but are just as
essential.
The greenhouse effect is the ability of certain gases to retain solar radiation as heat energy.
If you are attempting to minimize the amount of mercury in your diet, you should eat
producers like fruits and vegetables.
When you observe a lake that has been affected by acid deposition, you might expect to find:
XXX mercy lake...
high level dissolved sulfur dio
Phosphorus, which is often a limiting nutrient in ecosystems, is very important because it: is
needed for molecules such as ATP, cell membranes, and nucleic acids.
Chemicals that mimic the effect of reproductive hormones are: endocrine disruptors
If the plants in a community produce 500 grams of organic matter per square meter per year
that is available for animals in the community to eat, this amount of energy is known as the:
net primary productivity of the community.
Certain bacteria and fungi that are important in nutrient recycling because they release
nutrients from dead organisms back into the ecosystem are: decomposers
In open-water marine ecosystems, the ________ occupy the same trophic level as the giant
sequoias (redwoods) in the forests of California microscopic, single-celled algae (protists)
called phytoplankton ("plant-like drifters")
