BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 42, Problem 3CT
Summary Introduction
To determine:
The sources that plants tap to meet their need for sulfur.
Introduction:
Sulfur cycle is a biogeochemical cycle in which sulfur circulates in nature in various forms. The main reservoirs for sulfur are rocks, but some amount of sulfur is also present in water in dissolved form. In the atmosphere, sulfur is present in the form of oxides.
Summary Introduction
To determine:
The essential biological compounds that contains sulfur.
Introduction:
Sulfur cycle is a biogeochemical cycle in which sulfur circulates in nature in various forms. The main reservoir for sulfur are rocks, but some amount of sulfur is also present in water in dissolved form. In the atmosphere, sulfur is present in the form of oxides.
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Plants are classified as
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E) heterotrophs; glucose
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Chapter 42 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 42 - In most ecosystems, producers use energy from...Ch. 42 - Prob. 2SACh. 42 - Organisms at the first trophic level ________. a....Ch. 42 - Primary productivity on land is affected by...Ch. 42 - An _______ is an autotroph. a. producer c....Ch. 42 - Most of Earths fresh water is _______. a. in lakes...Ch. 42 - Earths largest carbon reservoir is _______. a. the...Ch. 42 - Carbon is released into the atmosphere by ________...Ch. 42 - Prob. 9SACh. 42 - The ______ cycle is a sedimentary cycle. a....
Ch. 42 - Earths largest phosphorus reservoir is ________....Ch. 42 - Plants obtain ______ by taking it up from the air....Ch. 42 - Prob. 13SACh. 42 - Soil in _______ is richest in carbon. a. the...Ch. 42 - Prob. 15SACh. 42 - Marguerite has a vegetable garden in Maine....Ch. 42 - Prob. 2CTCh. 42 - Prob. 3CTCh. 42 - Prob. 4CT
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- The practice of crop rotation uses nitrogen fixation to create fertile fields. First, a plant without a nitrogen-fixing relationship, such as corn, is planted. After the harvest, a nitrogen-fixing plant replaces the initial crop. Instead of harvesting the nitrogen-fixing plant, however, it is plowed under. The cycle continues in this manner. Why would nitrogen-fixing plants be plowed under instead of harvested? * To increase water retention. Nitrogen-fixing plants are not a food crop. To increases usable nitrogen in the soil. To decrease bacteria in the soil.arrow_forwardWhat process carries elements through ecosystems? respiration precipitation decomposition nutrient cyclearrow_forwardSuppose that the net secondary production in a community is 520 kilograms. The respiration of heterotrophs is 1,400 kilograms, and the egestion is 350 kilograms. Plant respiration is 2,700 kilograms. How many kilograms of plant material did the heterotrophs ingest?arrow_forward
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