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 12RQ
The weight of living organisms in an ecosystem at a particular point in time is called:
- energy
- production
- entropy
- biomass
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Organisms in an ecosystem can be classified as producers or consumers. The producers provide food for the consumers. An organism that breaks down already dead organisms is called?
Which of the following terms identifies multiple pathways for energy flow within an area
Biomass includes all:
Matter produced by primary producers
Material in an ecosystem
Living and nonliving things
Things that are living at a given time
Biological material
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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- The way in which organisms depend on each other to survive is known as energy flow interdepedence adaption. food chainarrow_forwardAn ecosystem is composed of communities of living organisms at a particular time. This includes plants and animals, as well as abiotic elements such as water, wind, heat, and chemical constituents. True or False?arrow_forwardWhich of the following terms identifies a singular path for the flow of energy within an areaarrow_forward
- Which of the following situations show a biotic factor operating within an ecosystem? the rate of water flow in a body of water the kind of climate in a given region the concentration of hydrogen gas in the air carnivores that eat other animalsarrow_forwardWhich statement about energy is false?Group of answer choices It includes work, plus anything that can be transformed into work. In chemical form, it is passed up the food chain, along with nutrients. It moves between the living and nonliving world. Because energy is neither created nor destroyed, ecosystems can run indefinitely without any input energy. Some ecosystems can function independent of the energy of sunlight.arrow_forwardAn ecosystem consists of: All the species in a biological community A biological community and its physical environment The species with which a biological community interacts The primary producers within a biological community A physical environment within which a biological community livesarrow_forward
- Which law of Thermodynamics explains why ecosystems cannot have an infinite number of trophic levels? Select one: Third Law Second Law First Law Fourth Lawarrow_forwardWhat can you say about the ENERGY FLOW IN ECOSYSTEMarrow_forwardUsing the food chain, construct an energy pyramid and answer the following questions. Which animal has the most amount of available energy? Which animal has the least amount of available energy?arrow_forward
- Draw a diagram representation of the structure of an ecosystem using the following words: ECOSYSTEM BIOTIC ABIOTIC PRODUCERS CONSUMERS DECOMPOSERS SUNLIGHT AIR WATER ATMOSPHERE SOIL TEMPERATURE Primary Consumer Secondary Consumer Tertiary Consumerarrow_forwardWhich of the following is true about energy flow in ecosystems on Earth? 99% of energy that reaches the earth is used to drive the process of photosynthesis Only about 10% of energy is moved from one trophic level to the next, while the remaining is lost as heat A very small amount of solar radiation that reaches the earth is scattered or reflected The Law of Conservation of Energy states that energy cannot be destroyed, but it can be created in plantsarrow_forwardSelect the food chain that illustrates the correct flow of energy. sun → plants → fish → water snake → crocodile → decomposers decomposers → fish → sun → water snake → crocodile →plants sun→ plants → decomposers fish crocodilewater snake sun→ plants → decomposer fish-water snake→ crocodilearrow_forward
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