Algal blooms occur due to the presence of an excess amount of nutrients, like phosphorus, in fresh water. How does excess phosphorus get into fresh water? The nutrients are a part of the fertilizers that are often washed away into ponds. The nutrients are added to the water by fishermen to feed the fish. The nutrients leak into fresh water from oil refineries in the vicinity. The nutrients are formed by the decomposition of organic wastes dumped into fresh water.

Algal blooms occur due to the presence of an excess amount of nutrients, like phosphorus, in fresh water. How does excess phosphorus get into fresh water? The nutrients are a part of the fertilizers that are often washed away into ponds. The nutrients are added to the water by fishermen to feed the fish. The nutrients leak into fresh water from oil refineries in the vicinity. The nutrients are formed by the decomposition of organic wastes dumped into fresh water.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter22: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 3VCQ: Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing...

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Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates (NO3 ) into nitrogen gas (N2). Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+).
Plants obtain ______ by taking it up from the air. a. nitrogen c. phosphorus b. carbon d. water
The majority of the water found on Earth is: a. ice b. water vapor c. fresh water d. salt water
Waterborne microorganisms can survive in water with small amounts of nutrients but thrive in polluted water, which is rich in nutrients. Why do you think that polluted water is considered rich in nutrients?
Photosynthetic organisms are ______. producers that make all of their organic matter from organic molecules that they take in consumers that obtain organic molecules from other living organisms decomposers that obtain nutrients from the soil producers that make all their own organic matter from inorganic molecules
Nitrogen is available to terrestrial plants in the form of Select all that apply. Select one or more: a. nitrite ions in the soil b. nitrate ions in the soil c. animal carcasses d. N2 in the atmosphere e. ammonium ions in the soil
It is common for bogs to have a pH of 3, why does this make them nutrient poor? 1. Low pH reduces the solubility of many nutrients. 2. Low pH increases nutrient binding to organic matter. 3. Low pH prevents the growth of the microorganisms responsible for the breakdown of organic matter. 4. Low pH reduces cation exchange.
In Eutrophication, excess nutrients can cause algal blooms. However, what happens when the algae eventually die? Bacterial – Increase or decrease Oxygen – Increase or decrease
Plant growth is limited by available nitrogen. Why is nitrogen fixation a limiting factor? There is very little nitrogen available after fossil fuel combustion utilizes the available nitrogen. Nitrogen must be produced by bacteria due to the inability of recycling by decomposers. There is no nitrogen in the atmosphere; it is only found in aquatic biomes. The stability of nitrogen gas makes it difficult to turn into nitrogen for living things.
Why do raw household ingredients such as granulated sugar and cooking oils never go bad in normal conditions? Extrinsic factors (room temperature) These foods have a very low Aw ph of these ingredients is too low to support spoilage organisms They do spoil
11. Soil can be important in lessening the effects of climate change because: soil can be a large reservoir for excess carbon. All of these answers are true. microorganisms lessen the amount of methane released into the atmosphere. soil that is compacted cannot release dangerous greenhouse gases into the atmosphere.
You are observing an organism. It appears to extract energy stored in inorganic molecules like ammonia, nitrites and hydrogen sulfide; it uses carbon dioxide as its primary carbon source. What kind of organism is it? (Hint: think nutrition groups)