Biology: Science For Life With Physiology Plus Mastering Biology With Pearson Etext -- Access Card Package (6th Edition) (what's New In Biology)
6th Edition
ISBN: 9780134794679
Author: BELK
Publisher: PEARSON
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Chapter 15, Problem 2GFO
Summary Introduction
To write:
All those of us in the more developed world should assist the African population to ensure sustainability. The factors that may influence the thoughts of assisting Africa.
Introduction:
The population growth is one of the major concerns in the African Countries. The Food production of Africa has not outpaced the population growth yet. Due to this reason, Africa is very poor and there are many regions affected by starvation.
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Chapter 15 Solutions
Biology: Science For Life With Physiology Plus Mastering Biology With Pearson Etext -- Access Card Package (6th Edition) (what's New In Biology)
Ch. 15 - Prob. 1LTBCh. 15 - Prob. 2LTBCh. 15 - Prob. 3LTBCh. 15 - Prob. 4LTBCh. 15 - According to the graph shown here, the carrying...Ch. 15 - All of the following are density-dependent factors...Ch. 15 - In contrast to nonhuman populations, human...Ch. 15 - Populations that rely on stored resources are...Ch. 15 - The current carrying capacity of Earth for the...Ch. 15 - Prob. 10LTB
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- One farmer consumes one-half (0.5) chicken per day for a year One chicken consumes 40 grasshoppers per day 1,200 grasshoppers have a mass of one kilogram One grasshopper requires 25 grams of soybeans per year One human requires 750 grasshoppers per day Soybeans have 3.2 calories per gram 1a. Suppose the farmer chose to eat grasshoppers instead of chickens. How many people could the grasshoppers feed, compared to the one person that the chicken fed? 2a. The farmer needs to consume 3,500 calories per day. If he ate only soybeans instead of the chickens or grasshoppers, how many people would his soybean crop feed? 3a. Create a Biomass Pyramid using the data you have developed up to this point. At each trophic level, record the biomass of the organisms over a period of one year needed to support one farmer. Assume that a farmer weighs 75 kg and a chicken weighs 1.5 kg. The pyramid may be set up like this: 4a. Should people eat at a lower trophic level? Outline three pros and three cons of…arrow_forwardWhich of the following is a threat to the future food supply? fossil fuel use water shortages ocean pollution all of the abovearrow_forwardThe global human population has surpassed 7 billion, far exceeding our population’s size throughout our history on Earth. Name some specific means by which we have apparently raised Earth’s carrying capacity for our species. Do you think we can continue to raise our carrying capacity? How might we do so? What limiting factors exist for the human population today? Might Earth’s future carrying capacity for us decrease? Why or why not?arrow_forward
- Explain why you agree or disagree with the followingpropositions:a. Stabilizing population is not desirable because, without more consumers, economic growth would stop.b. The world will never run out of resources becausewe can use technology to find substitutes and tohelp us reduce resource waste.c. We can shrink our ecological footprints while creating beneficial environmental impacts.arrow_forwardA) Affluent, more developed nations consume a disproportionate amount of Earth’s resources and produce a disproportionate amount of wastes, including carbon dioxide and other greenhouse gases that are causing global climate change. The consequences of climate change include rising sea levels, drought, and extreme weather events. Do you think affluent countries should be responsible for helping poorer, less developed countries bear the financial burden of these consequences? Substantiate your answer B) Some people are not convinced that human-induced global climate change is a real phenomenon. Using your knowledge of the scientific process and the information from this chapter, develop arguments you could use to explain the scientific basis for saying that global climate change is truly occurring and that people are responsible for it.arrow_forwardDescribe five ways in detail, which you can reduce your ecological footprint to save our planet Earth.arrow_forward
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