Human Biology: Concepts and Current Issues, Books a la Carte Edition (8th Edition)
8th Edition
ISBN: 9780134154008
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 23, Problem 6CR
Summary Introduction
To review:
The need for a constant supply of energy for sustaining life.
Introduction:
An ecosystem is made up of living and nonliving components. The living organisms require nutrients for their growth and development. A constant supply of energy is required to drive these nutrients across all the spheres of life.
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Why is a constant supply of energy needed to sustain life?
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Why do living things require energy? Where does that energy ultimately come from?
Chapter 23 Solutions
Human Biology: Concepts and Current Issues, Books a la Carte Edition (8th Edition)
Ch. 23 - Do you think extending nations' ocean territorial...Ch. 23 - Are there any marine protected areas (MPAs) or...Ch. 23 - What are the components of an ecosystem?Ch. 23 - Prob. 2CRCh. 23 - Describe what happens to a country as it undergoes...Ch. 23 - Define zero population growth and explain why it...Ch. 23 - Prob. 5CRCh. 23 - Prob. 6CRCh. 23 - Prob. 7CRCh. 23 - Explain why the water cycle is essential to all...
Ch. 23 - Discuss the importance of the carbon cycle.Ch. 23 - Discuss the phosphorus cycle and its importance.Ch. 23 -
1. Your college campus, including all the humans...Ch. 23 -
2. Which of the following will affect the biotic...Ch. 23 - A population is growing at a rate of 2% per year....Ch. 23 - The large intestine of humans is populated by a...Ch. 23 -
5. Which of the following characterizes mature...Ch. 23 -
6. _____ flow(s) one-way through ecosystems while...Ch. 23 - All of the following terms can appropriately...Ch. 23 -
8. A human maintaining a vegan diet (containing...Ch. 23 - All of the following processes are involved in the...Ch. 23 - Prob. 10TYCh. 23 - Prob. 11TYCh. 23 -
12. Which biogeochemical cycle does not include...Ch. 23 - Prob. 13TYCh. 23 - Which of the following statements is false? a. The...Ch. 23 - Which statement about the human fertility rate is...Ch. 23 - Given absolutely no environmental resistance, how...Ch. 23 - Prob. 2AWKCh. 23 - Prob. 3AWKCh. 23 - Prob. 4AWKCh. 23 - Prob. 5AWKCh. 23 - Prob. 6AWKCh. 23 - Least developed countries tend to be poorer than...
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- Which of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.arrow_forwardHow is energy created?arrow_forwardWhat type of energy is available in ecosystems and the biosphere? Can this type of energy be used by humans to maintain the organization of our bodies? Can this type of energy be used by any kind of living thing? For what process?arrow_forward
- Where do living organisms get their energy?arrow_forwardWhat is the primary energy source for life on earth?arrow_forwardWhat does the shape of the energy pyramid indicate? If Humans occupy the top level in an energy pyramid, what that this indicate? Is this beneficial or not beneficial to man?arrow_forward
- What is a food chain?arrow_forwardwhat advantage does metabolism provide to living things? a. metabolism provides the energy needed for reproduction and homeostasis b. metabolism provides organisms with much needed camouflage c. without metabolism, the chemical elements necessary for life could not form d. metabolism produces offspringarrow_forwardWhat is the molecule produced by mitochondria that is the source of energy for living things? A- oxygen B- glucose C- ATParrow_forward
- Imagine Earth without Life and Life without Earth.arrow_forwardGrasses collect energy from sunlight. Rabbits collect energy by eating grasses. Coyotes collect energy by eating rabbits. Which of the following organisms has the least amount of energy available to them (as compared to the amount of solar energy that hits Earth from space)? A. Coyotes, because some of the original amount of energy was lost as body heat in grasses and rabbits B. Grasses, because the energy has yet to be condensed as it moves through the food chainarrow_forwardWhich chemical contains the greatest store of free energy in one molecule? A. ATP B. glucose C. starch D. chlorophyllarrow_forward
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