Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 31, Problem 7RQ
What is the main water source for land plants?
- rain
- soil
biomolecules - essential nutrients
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Students have asked these similar questions
Nitrogen compounds differ from other minerals needed by plants because they
Select one:
O a. Are toxic to the plants
O b. Can be lost from the soil
O c. Can be absorbed by root hairs
O d. Are held by cation exchange capacity in the soil
O e. Can be provided by symbiotic bacteria
how does energy flow from different organism back to soil
How can soil erosion lead to desertification?
It reduces the level of organic matter
It promotes flooding that destroys vegetation
It promotes salinization that destroys soil structure
Which of the following is not a factor that may lead to urban sprawl?
Pollution
Immigration
Overpopulation
Which statement is NOT true about soil salinization?
Soil dehydrates due to decrease in accumulation of water underground.
Starts by attempting to wash the salts out of the topsoil by pumping more water.
Results to the damage and killing of plants as saline water surrounds its deep roots.
Which would most likely happen if too much nutrient entered a freshwater ecosystem?
Algae will decrease, leaving few food resources, for fish.
Nutrients would sink to the bottom, increasing soil deposition.
Algae breakdown lowers dissolved oxygen, causing fish to suffocate.
Chapter 31 Solutions
Biology 2e
Ch. 31 - Figure 31.6 Soil compaction can result when soil...Ch. 31 - Figure 31.7 Which horizon is considered the...Ch. 31 - Figure 31.10 Farmers often rotate corn (a cereal...Ch. 31 - For an element to be regarded as essential, all of...Ch. 31 - The nutrient that is part of carbohydrates,...Ch. 31 - Most ____ are necessary for enzyme function....Ch. 31 - What is the main water source for land plants?...Ch. 31 - Which factors affect soil quality? chemical...Ch. 31 - Soil particles that are 0.1 to 2 mm in diameter...Ch. 31 - A soil consists of layers called that taken...
Ch. 31 - What is the term used to describe the solid rock...Ch. 31 - Which process produces an inorganic compound that...Ch. 31 - Through mycorrhization, a plant obtains important...Ch. 31 - What term describes a plant that requires...Ch. 31 - What is the term for the symbiotic association...Ch. 31 - What type of plant problems result from nitrogen...Ch. 31 - Research the life of Jan Babtista van Helmont What...Ch. 31 - List two essential macronutrients and two...Ch. 31 - Describe the main differences between a mineral...Ch. 31 - Name and briefly explain the factors that affect...Ch. 31 - Describe how topography influences the...Ch. 31 - Why is biological nitrogen fixation an...Ch. 31 - What is the main difference, from an energy point...Ch. 31 - Why is a root nodule a nutritional adaptation of a...
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- RI 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 soilarrow_forwardWhich soil mineral is most likely to be leached away during heavy rain? O hydrogen ion (H+) O Potassium ion (K+) O chloride ion (Cl-) O Calcium ion (Ca2+) O Sodium ion (Na+)arrow_forwardPlants obtain ______ by taking it up from the air. a. nitrogen c. phosphorus b. carbon d. waterarrow_forward
- What is the importance of decomposition to nutrient cycling?arrow_forwardWhat is the most important thing you can do to a mineral soil in order to ensure an adequate supply of and maximum availability of plant nutrients?arrow_forwardBased on the chart, [blank] and [blank] are root feeders that consume plant roots.arrow_forward
- The limiting nutrient in an ecosystem is the nutrient; that is the most scarce nutrient that is needed for more growth to occur that is limited however is not needed by many organisms in the system is almost always carbon dioxide is almost always nitrogen gasarrow_forward69. what types of energy is transferred from one object to another? potential energy chemical energy radioactive energy heat kinetic energy 70.what type of organisms return chemicals to the soil saprophytes producers autotrophs consumers heterotrophsarrow_forwardDrought is the main constraint for agriculture sector. What is the major consequence of water insufficiency in plant? *arrow_forward
- In which layer would plants find the most nutrients? SOILLAYERS OL A: Humus & Top soil B: Subsoil( Clay) C: Parent Rock Humus Top soil Subsoil D: Bedrock Parent rock Bedrockarrow_forwardNet primary production is equal to gross primary production minus what? the energy contained in bark and roots the energy used by autotrophs in respiration the energy fixed by photosynthesis solar energy the energy contained in leavesarrow_forwarddraw a phosphorus cycle, like the illustration below! please help mearrow_forward
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Soil Ecology; Author: Prof. Mark Valen;https://www.youtube.com/watch?v=rByV6yvJ-Ho;License: Standard youtube license