BIOLOGY: ESSENTIALS >LL< W/ CONNECT
3rd Edition
ISBN: 9781260635379
Author: Hoefnagels
Publisher: MCG
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Chapter 1, Problem 4MCQ
Summary Introduction
Introduction:
Every stage of life is interconnected with each other. Energy is the main source for all ecosystems. Food web or foo clearly explains the linkage of organism in a schematic representation. Based on the use of energy and nutrients, an organism is largely classified into three types: (1) primary producers or autotrophs, (2) consumers or heterotrophs, and (3) decomposers.
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Autotrophs are unable to make their own food so they depend on other organisms for their source of food. Heterotrophs are producers.
a. Both statements are true
b. The first statement is true
c. Both statements are false.
d. The second statement is true.
Which of these occurs through symbiotic nitrogen fixation? a. The plant benefits from using an endless source of nitrogen. b. The soil benefits from being naturally fertilized. c. Bacteria benefit from using photosynthates from the plant. d. All of the above occur.
(a) Younger plant parts/materials decompose faster compared to older more lignified plant parts/materials; (b) Materials with narrow C:N ratio will decompose more easily compared to materials with wider C:N ratio.
A. If statement A is true
B. if statement B is true
C. both statement A and B are true
D. statement A nor B are true
Chapter 1 Solutions
BIOLOGY: ESSENTIALS >LL< W/ CONNECT
Ch. 1.1 - Prob. 1MCCh. 1.1 - The bacteria in figure 1.8 reproduce asexually,...Ch. 1.2 - If the human and kangaroo in figure 1.9 switched...Ch. 1.2 - Prob. 2MCCh. 1.2 - Prob. 3MCCh. 1.3 - Identify the elements of the experiment summarized...Ch. 1.3 - What is a statistically significant result?Ch. 1.3 - Prob. 3MCCh. 1.3 - What are some limitations of scientific inquiry?Ch. 1.3 - Prob. 5MC
Ch. 1 - Which of the following is smaller than an...Ch. 1 - All of the following are characteristics of life...Ch. 1 - The concentration of salts in blood remains...Ch. 1 - Prob. 4MCQCh. 1 - Prob. 5MCQCh. 1 - What is the correct way to write the scientific...Ch. 1 - Prob. 7MCQCh. 1 - A scientist has just observed a new phenomenon and...Ch. 1 - Prob. 9MCQCh. 1 - Prob. 10MCQCh. 1 - Prob. 1WIOCh. 1 - Prob. 2WIOCh. 1 - Prob. 3WIOCh. 1 - Prob. 4WIOCh. 1 - Prob. 5WIOCh. 1 - Think of an analogy that will help you remember...Ch. 1 - Other than the brownie example given in the text,...Ch. 1 - Explain why populations of organisms are typically...Ch. 1 - How are the members of the three domains similar?...Ch. 1 - Give two examples of questions that cannot be...Ch. 1 - If you dissect and label the parts of an...Ch. 1 - List each step of the scientific method and...Ch. 1 - Prob. 13WIOCh. 1 - Review Why We Care 1.1, which describes...Ch. 1 - Prob. 1PITCh. 1 - What is the relationship between natural selection...Ch. 1 - Prob. 3PIT
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- Which of the following is true regarding plants and the nitrogen cycle? a. Nitrogen is a micronutrient b. Nitrogen is used for regulation of ion channels c. None of the above are true d. Nitrogen gas is fixed directly by plants e. Plants use fungi to fix nitrogenarrow_forwardPlant growth is most likely to be limited by the available supply of usable: a. nitrogenb. carbonc. oxygend. phosphorusarrow_forwardWhich of the following statements is/are TRUE for nitrogen fixation? A. Process is performed by nitrifying soil bacteria. B. Performed by bacteria present in the roots of all plants. C. Reduction of N2 to NH3. D. Consumes a negligible amount of ATP.arrow_forward
- Chemical fertilizers: a. supplement carbon fixation by crops. b. cause eutrophication. c. provide additional nitrogen for crops. d. provide additional phosphorous for crops. e. Only b. c. and d.arrow_forwardb. carnivores c. heterotrophs d. autotrophs 6. Any organism that must obtain its food from a source outside itself is a(n) a. autotroph. b. heterotroph. C. parasite. d. saprophyte. 8. Which is a consumer? MO) b. grassarrow_forwardOrganisms that use/degrade carbon compounds from food containing organic carbon to extract energy are called __________, whereas organisms that utilize CO2 from the air and often obtain energy from the sun are called ______________. A. heterotrophs; lithotrophs B. heterotrophs; autotrophs C. autotrophs; heterotrophs D. lithotrophs; autotrophs E. autotrophs; lithotrophsarrow_forward
- Why are bacterial decomposers important? a. They produce spores. b. Common in biotechnology. c. They fix nitrogen. d. They break down complex organic molecules in wastes and remains. e. Most cause disease.arrow_forwardNitrogen 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 soilarrow_forwardWhich of the following organism classification is based on free energy sources? A. lithotrophs B. organotrophs C. chemotrophs D. autotrophs A, C, D A, B, C, D A, B, C B, C, Darrow_forward
- The cyanobacteria in Lake Erie would best be described as .a. decomposersb. tertiary consumersc. primary producersd. heterotrophse. secondary consumersarrow_forwardtend to occupy the base of food webs. a. mediatrophs O b. trophytrophs С. heterotrophs O d. autotrophsarrow_forwardConsider figure 49.8 in the textbook. Note the red versus blue squares and the red versus blue bars in the graph. Please choose all applicable options. a.The difference in color (red versus blue) corresponds to a difference in an abiotic factor. b.The difference in color intensity (dark red versus light red) corresponds to a difference in a biotic factor. c.The difference in color (red versus blue) corresponds to a difference in a biotic factor. d.The difference in color intensity (dark red versus light red) corresponds to a difference in an abiotic factor.arrow_forward
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