Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 44, Problem 4RQ
Which of the following is a biotic factor?
- wind
- disease-causing microbe
- temperature
- soil particle size
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GİRTEN K
Which of the following is not true for Soil Organic Matter (SOM)?
O It can be degraded by microbes
OIt holds water for plants
It is integral to maintaining the soil structure
OIt makes up a large proportion of soil structure
OIt is important for retaining nutrients in the soil
As a rule of thumb, each 1% of soil organic matter by weight contains about 1,000
pounds of nitrogen in the plow layer. For a plow layer with 2% soil organic matter,
one can expect the amount of N to be mineralized per growing season to equal
about:
over 120 pounds
less than 10 pounds
15 pounds
120 pounds
40 pounds
An extremely acid soil generally limits the availability of many nutrients in the soil.
True or False
Chapter 44 Solutions
Biology 2e
Ch. 44 - Figure 44.10 How might turnover in tropical lakes...Ch. 44 - Figure 44.12 Which of the following statements...Ch. 44 - Figure 44.21 In which of the following regions...Ch. 44 - Which of the following is a biotic factor? wind...Ch. 44 - The study of nutrient cycling though the...Ch. 44 - Understory plants in a temperate forest have...Ch. 44 - An ecologist hiking up a mountain may notice...Ch. 44 - Which of the following biomes is characterized by...Ch. 44 - Which of the following biomes is characterized by...Ch. 44 - Where would you expect to find the most...
Ch. 44 - A key feature of estuaries is: low light...Ch. 44 - Which of the following is an example of a weather...Ch. 44 - Which of the following natural forces is...Ch. 44 - Ecologists often collaborate with other...Ch. 44 - The population is an important unit in ecology as...Ch. 44 - Compare and contrast ocean upwelling and spring...Ch. 44 - Many endemic species are found in areas that are...Ch. 44 - The extremely low precipitation of subtropical...Ch. 44 - In what ways are the subtropical desert and the...Ch. 44 - Scientists have discovered the bodies of humans...Ch. 44 - Describe the conditions and challenges facing...Ch. 44 - Compare and contrast how natural- and human...Ch. 44 - Predict possible consequences if carbon emissions...
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- When the soil is acidic, plants cannot grow on it. True or Falsearrow_forwardmicrobes in the soil converting no3- to n2? nitrogen fixation denitrification nitrification ammonificationarrow_forwardWhich of the following statements is not true about bioremediation and biodegradation? Microbes played a critical role in metabolizing the crude oil in the Deepwater Horizon spill in the Gulf of Mexico. Oil-degrading microbes have enzymes that use molecules in the oil as substrates. Phosphorus and nitrogen stimulate the growth of oil-degrading microbes. dding easily metabolized organic matter such as glucose increases biodegradation. The biodegradation of plastics is fast because of their chemical structure and properties.arrow_forward
- are water bodies natural factor or human factor?arrow_forwardAbout Introduction to Hydroponic Agriculture Define the following: Substrate Cladding Material Media Carrier Sulphur Heaterarrow_forwardSoil could be deficient in any of the following nutrients. If you had to supply one of these to the soil, which would be required in the smallest amount? Potassium Sulfur Phosphorus Nitrogen Ironarrow_forward
- Generally, the primary factor influencing soil organism populations is: O predation and competition amount and quality of food moisture and temperature chemical characteristics of the soilarrow_forwardHydroponics is: The process of altering new organisms to create new products. Natural or manufactured substances used in the place of food. The use of nutritious liquid rather than soil to grow plant roots All of the above statementsarrow_forwardFor which of the following problems would growing and maintaining cover crops be an appropriate solution? Erosion is thinning the soil on a farm. The organic matter and nutrients in the soil on a farm are being depleted. The soil on a farm is becoming arid due to decreased water-carrying capacity. a I and II only b I and III only c II and III only d I, II, and IIIarrow_forward
- Which of the following statements is NOT as description of soil? A. Varying nutritional content. B. Phototropic microbes are found only on the top few centimeters. C. A homogenous layer of organic and inorganic material. D. The area around the plant soil usually has the highest microbial populations.arrow_forwardDescribe soil as a microbial habitat.arrow_forwardCompared to traditional tillage, conservation tillage reduces topsoil erosion accelerates water loss from the soil causes soil compaction does not require herbicides reduces the amount of carbon stored in the groundarrow_forward
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