Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 46, Problem 14RQ
Organisms that can make their own food using inorganic molecules are called:
- autotrophs
- heterotrophs
- photoautotrophs
- chemoautotrophs
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Which term would describe the diet of the following organism?
A protist that eats bacteria in freshwater puddles for carbon and energy
Chemoheterotroph
Photoautotroph
Photoheterotroph
Chemoautotroph
Which of the following statements is true of chemoautotrophs?
O They use hydrogen sulfide as their hydrogen source for the photosynthesis of their organic compounds.
O They "feed themselves" by obtaining energy from the chemical bonds of organic molecules.
O They oxidize inorganic compounds to obtain energy to drive the synthesis of their organic compounds.
O They live as decomposers of inorganic chemicals in organic litter.
O They obtain their energy from oxidizing chemical compounds and get their carbon skeletons from organic
compounds.
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Which of the following describe an autotroph? Select all that apply.
An autotroph is a producer.
An autotroph is an organism that obtains carbon from organic compounds assembled by other organisms.
An autotroph is an organism that makes its own food using energy from the environment and carbon from inorganic molecules.
Autotrophs are consumers.
Chapter 46 Solutions
Biology 2e
Ch. 46 - Figure 46.8 Why do you think the value for gross...Ch. 46 - Figure 46.10 Pyramids depicting the number of...Ch. 46 - Figure 46.17 Which of the following statements...Ch. 46 - The ability of an ecosystem to return to its...Ch. 46 - A re-created ecosystem in a laboratory environment...Ch. 46 - Decomposers are associated with which class of...Ch. 46 - The primary producers in an ocean grazing food web...Ch. 46 - What term describes the use of mathematical...Ch. 46 - The position of an organism along a food chain is...Ch. 46 - The loss of an apex consumer would impact which...
Ch. 46 - A food chain would be a better resource than a...Ch. 46 - The weight of living organisms in an ecosystem at...Ch. 46 - Which term describes the process whereby toxic...Ch. 46 - Organisms that can make their own food using...Ch. 46 - In the English Channel ecosystem, the number of...Ch. 46 - What law of chemistry determines how much energy...Ch. 46 - The mussels that live at the NW Eifuku volcano are...Ch. 46 - The movement of mineral nutrients through...Ch. 46 - Carbon is present in the atmosphere as ________...Ch. 46 - The majority of water found on Earth is: ice water...Ch. 46 - The average time a molecule spends in its...Ch. 46 - The process whereby oxygen is depleted by the...Ch. 46 - The process whereby nitrogen is brought into...Ch. 46 - Which of the following approaches would be the...Ch. 46 - How would loss of fungi in a forest effect...Ch. 46 - Compare and contrast food chains and food webs....Ch. 46 - Describe freshwater, ocean, and terrestrial...Ch. 46 - Compare grazing and detrital food webs. Why would...Ch. 46 - How does the microcosm modeling approach differ...Ch. 46 - How do conceptual and analytical models of...Ch. 46 - Compare the three types of ecological pyramids and...Ch. 46 - How does the amount of food a warm-blooded animal...Ch. 46 - A study uses an inverted pyramid to demonstrate...Ch. 46 - Describe what a pyramid of numbers would like if...Ch. 46 - Describe nitrogen fixation and why it is important...Ch. 46 - What are the factors that cause dead zones?...Ch. 46 - Why are drinking water supplies still a major...Ch. 46 - Discuss how the human disruption of the carbon...
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