Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 44.6, Problem 1TYK
Net primary production is
- the energy that passes from plants on to herbivores.
- gross primary production minus the energy used by herbivores.
- the energy fixed in photosynthesis.
- the energy fixed in photosynthesis minus the energy used in respiration of photosynthetic organisms.
- gross primary production minus the energy used by consumers.
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Net primary productivity is the primary productivity of an ecosystem, after
subtracting energy lost in
inedible plant tissues.
respiration by primary producers.
dead plant tissues.
O respiration by primary consumers.
inefficiencies of photosynthesis.
Net primary productivity refers to
the rate of energy storage as organic matter by autotrophs after respiration is deducted
the total rate of photosynthesis, or energy assimilated, by autotrophs
the amount of accumulated organic matter found in an area at a given time
the production of new tissues and offspring by heterotrophs
What is biomass?
Animal material used as fuel.
Plant and animal material used as fuel.
Farm animal waste used as fuel.
Plant material used as fuel.
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Part B
What are the problems and advantages of biomass as an energy source?
Check all that apply.
radioactive
cheap and efficient
renewable
inefficient and expensive
harmful biproducts
Chapter 44 Solutions
Principles of Biology
Ch. 44.1 - Prob. 1CCCh. 44.1 - Prob. 1TYKCh. 44.1 - Lake Baikal in Siberia is an ancient, unglaciated...Ch. 44.1 - Prob. 3TYKCh. 44.2 - Prob. 1TYKCh. 44.2 - Prob. 2TYKCh. 44.3 - Why might ecologists think of walking thecoastline...Ch. 44.3 - Prob. 2CCCh. 44.3 - Which of the following are examples of secondary...Ch. 44.3 - In New England salt marshes, Spartina grass...
Ch. 44.3 - Prob. 3TYKCh. 44.4 - Prob. 1CCCh. 44.4 - Prob. 1BCCh. 44.4 - Prob. 2CCCh. 44.4 - Which is part of the original MacArthur-Wilson...Ch. 44.4 - Prob. 2TYKCh. 44.5 - In these two food chains, plants and...Ch. 44.5 - Prob. 1CCCh. 44.5 - Prob. 1TYKCh. 44.5 - Detritivores that feed on the dung of herbivores...Ch. 44.5 - Prob. 3TYKCh. 44.6 - Net primary production is the energy that passes...Ch. 44.6 - Prob. 2TYKCh. 44.6 - Most gross primary production is used in (by)...Ch. 44 - Prob. 1TYCh. 44 - Prob. 2TYCh. 44 - Prob. 3TYCh. 44 - Prob. 4TYCh. 44 - On which types of islands would you expect species...Ch. 44 - Prob. 6TYCh. 44 - Autotrophic organisms are primary consumers....Ch. 44 - Prob. 8TYCh. 44 - Prob. 9TYCh. 44 - The most highly productive terrestrial ecosystems...Ch. 44 - Prob. 1CCQCh. 44 - Prob. 2CCQCh. 44 - Prob. 3CCQCh. 44 - List some possible ecological disturbances, their...Ch. 44 - Prob. 2CBQ
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- All the following are renewable energy sources except ______. a. hydropower b. wind c. natural gas d. solar energyarrow_forwardSUSTAINABLE UNSUSTAINABLE Using fossil fuels in machines to speed production and provide the needs of the people. Achieving food security and improve nutrition in every part of the world. Improving inorganic fertilizers in the yielding of crops for food security. Repopulating rural areas for economic development. Utilizing renewable sources of energy. Ensuring inclusive and equitable quality education. Implementing 3 R's Reduce, Reuse, Recycle Using single-use items for sanitary purposes. Initiating urban gardening in high-rise structures. Increasing carbon footprint to maintain an exorbitant lifestyle.arrow_forwardWhich fraction of phosphorus is available for photosynthetic organisms to directly uptake and use? Organic phosphorus in detritus Absorbed phosphorus in clay Phosphorus in minerals in rocks Soluble phosphorus in waterarrow_forward
- Helparrow_forwardWhat are the four types of solar energy utilization? Group of answer choices Wind energy Tidal power Active solar Photovoltaic cells Passive solar Solar thermal energy conversionarrow_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_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_forwardNonrenewable Energy sources - impact on the environment What is the environment impact of coal? Include coal mining, transport, and use What is the environment impact of crude oil? Include drilling, transport, and usearrow_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_forward
- SECTION 13.3 Energy in Ecosystems KEY CONCEPT Life in an ecosystem requires a source of energy. Producers provide energy for other organisms in an ecosystem. In Section 13.2 you read that ecosystems are made up of both biotic and abiotic factors. Another important part of an ecosystem is the flow of energy. All organisms need a source of energy in order to survive. • Producers are organisms that make their own food. Plants and other photosynthesizing organisms are producers. Producers are also called autotrophs. Consumers are organisms that get their energy by eating other organisms, including plants and animals. Consumers are also called heterotrophs. Producers provide the basis for an ecosystem's energy. Some consumers eat producers. For example, moose and elk eat plants. Some consumers eat other consumers. For example, the grey wolf eats moose and elk. But all consumers depend on producers. Without producers, moose and elk could not survive and without moose and elk, the wolf could…arrow_forwardA class is studying the tropic levels of an ecosystem. The pyramid of biomass shown is a model of these trophic levels. Which of the following is the best explanation of the available energy at each of the trophic levels in this ecosystem ? ANSWER CHOICES ARE IN THE PHOTO. thanks.arrow_forwardWhy don’t producers (plants) increase GPP in response to increasing CO2 in the atmosphere and thus reduce climate change? Group of answer choices Excess fertilizer from human activities reduces plant growth High concentrations of CO2 are toxic to plants CO2 concentrations are not increasing Consumers will just eat more plants if they grow faster CO2 is not the limiting nutrient for plantsarrow_forward
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