Biology: Concepts and Investigations
5th Edition
ISBN: 9781260542202
Author: Marielle Hoefnagels
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 37, Problem 3PIT
3. Add the following terms to this concept map: density-dependent, density-independent,
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12. Population growth is limited by the following factors EXCEPT *
litter size
biotic potential
predation
environmental resistance
13. Which of the following statements about population size is TRUE? *
O Increase in environmental resistance leads to immigration of individuals.
O Increase in population is caused by increase in environmental resistance.
O Increase in carrying capacity of an ecosystem leads to an overshoot of a population.
O Decrease in environmental resistance increases the biotic potential of an organism.
There are two types of life strategies used by organisms to survive in their environment.
1. K-selected strategy - growth rate is near the carrying capacity
2. r-selected strategy - growth rate is near biotic potential
Match the characteristices below to the life strategy they represent
J-cruve
Logistic Growth
Long life span
Few offspring
4. There was a fish kill because of the higher temperature below the water. *
density-dependent limiting factor
density-independent limiting factor
Chapter 37 Solutions
Biology: Concepts and Investigations
Ch. 37.1 - Define population, community, and ecosystem.Ch. 37.1 - What is population density?Ch. 37.1 - Distinguish among the types of distribution in a...Ch. 37.1 - Prob. 4MCCh. 37.2 - Prob. 1MCCh. 37.2 - Prob. 2MCCh. 37.2 - Prob. 3MCCh. 37.2 - Prob. 4MCCh. 37.3 - Prob. 1MCCh. 37.3 - Prob. 2MC
Ch. 37.3 - Prob. 3MCCh. 37.3 - Prob. 4MCCh. 37.3 - Prob. 5MCCh. 37.4 - Prob. 1MCCh. 37.4 - Distinguish between opportunistic and equilibrium...Ch. 37.5 - Which parts of the world have the highest and...Ch. 37.5 - How does the demographic transition reflect...Ch. 37.5 - Prob. 3MCCh. 37.5 - What are some of the environmental consequences of...Ch. 37.6 - Prob. 1MCCh. 37.6 - Prob. 2MCCh. 37 - Population size increases when a. the sum of birth...Ch. 37 - Prob. 2MCQCh. 37 - Prob. 3MCQCh. 37 - Prob. 4MCQCh. 37 - Prob. 5MCQCh. 37 - Prob. 1WIOCh. 37 - Prob. 2WIOCh. 37 - Describe the difference between population density...Ch. 37 - Prob. 4WIOCh. 37 - Prob. 5WIOCh. 37 - Prob. 6WIOCh. 37 - Prob. 7WIOCh. 37 - Prob. 8WIOCh. 37 - Prob. 9WIOCh. 37 - Prob. 10WIOCh. 37 - Prob. 11WIOCh. 37 - A species with an opportunistic life history...Ch. 37 - 1. Review the Survey the Landscape figure in the...Ch. 37 - Prob. 2PITCh. 37 - 3. Add the following terms to this concept map:...
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- Match each term with its most suitable description. _____ carrying capacity a. maximum rate or increase per individual under ideal conditions _____ exponential growth b. population growth plots out as an S-shaped curve _____ biotic potential c. maximum number or individuals sustainable by the resources in a given environment _____ limiting factor d. population growth plots out as a J-shaped curve _____ logistic growth e. essential resource that restricts population growth when scarcearrow_forwardGive an example of how density-dependent and density-independent factors might interact.arrow_forward1. List the three major types of community interactions. 2. Describe the relationship between a predator population and the population of its prey. 3. What is a keystone species? Give an example. 4. Define mutualism and commensalism. 5. What is population density? 6. Define immigration and emigration. 7. What is migration? Give an example. 8. State why dispersal of offspring away from their parents might be beneficial.arrow_forward
- 5. Trophic level transfer efficiency is related to population turnover rate in agricultural pests. There are 15g/m2 of locust (herbivorous insect) per 1000g/m2 of wheat (primary producer) and 4g/m2 of cutworms (herbivorous insect) per 200g/m2 of corn (primary producer). __________ have the largest population turnover rate and __________ have the biggest impact on crops. a. locust, both b. locust, cutworms c. cutworms, cutworms d. both, both e. cutworms, locustarrow_forward26. Examine the land use per 100 grams of protein in the data chart below:(image attached)Which of the following statements explains the data trend observed in the chart? Beef uses significantly more land than plants to produce 100 grams of protein. Meat production is more efficient than farming protein from fish and prawns. Lamb and mutton produce more protein per square meters than pig meat and poultry. Nuts and grains produce less protein per square meter than milk and cheese. 52. Which of the following describes the benefits of free-range grazing for meat production? Organic wastes as fertilizer Antibiotic and hormone-free Larger animals Provides quality meat I and II I and IV I, II, and IV I, II, and III 57. Which of the following describes the consequences of overgrazing? Low precipitation Desertification Loss of arable land Soil erosion II, III, and IV I, II, and IV I…arrow_forward1. Let's take a brief look at ecological footprints on the national level. This is important, because each nation has different environmental policies and cultures. Do a comparison of your home country with others around the world using the instructions below. Use this Footprint of Nations website: (http://data.footprintnetwork.org/#/) Use the interactive map showing average ecological footprints for various countries. I recommend you choose the map option showing Ecological Deficit/Reserve. Once you have selected a country, a graph will appear showing the ecological footprint and biocapacity/ natural resource capacity of your selection. What you are determining is how much natural resource capital a nation has vs. how much it is using. List those values in the chart for the most recent year given. Be careful here: Because this is international information (metric system), the units of measure are in hectares, not acres! You can use either measurement but if you use acres you will…arrow_forward
- 1.True or False: Different populations are composed of different species of organisms. 2.True or False: A niche is the particular place in which an organism lives 3.True or False: Food webs are made up of interconnected food chains. 4.True or False: In food chains, many 3rd-order consumers are needed to support only a few food producers. can you answer this thanks.arrow_forwardDescribe biotic potential. Describe carrying capacity. How do these two factors affect population growth and the ultimate stable size of a population?arrow_forward1.In wildlife management, population numbers must be sustainable in that populations cannot exceed the environment’s ability to support them. Using the ∆N formula, consider the following: Coyotes are members of the Canis family, or dog family, that wanders natural or agricultural grasslands and temperate forest in search of rodents and small prey. Occasionally they will form packs to bring down a larger animal – perhaps a young, sick, or old deer. In this scenario, assume population numbers of coyotes have increased dramatically. a.Using your knowledge of the ∆N formula, provide four possible causes for this dramatic increase in population. b.Assume you are a wildlife manager and that the high coyote population is resulting in more human/coyote interactions. Steps need to be taken to correct the imbalance in coyotes. Provide two ecologically sound solutions to the problem.arrow_forward
- 9. An undergraduate ecology student doing research on niche dimensions decided to repeat part of R. H. MacArthur's famous study of foraging behavior of warblers in northeastern coniferous forests. She marked the heights of various branches in several conifers with colored tape and observed two similar species of warbler with binoculars and recorded the average foraging height for each bird. The heights in feet for the individuals observed were: Bay-breasted warbler 17 10 13 12 13 11 13 16 17 19 Blackburnian warbler 15 17 17 18 15 16 17 24 20 16 24 15 (a) Calculate the mean and standard deviation of the foraging heights for each species. Comment on the results. (6) Determine the median and range for each species. Which of the two statistics, the standard deviation or the range, is a better reflection of the variability in the foraging height? Explain.arrow_forwardIs an environment's carrying capacity mainly affected by density-dependent or density-independent factors? Explain your answer.arrow_forwardafter the bamboo fruiting: In reality, this high carrying capacity cannot be sustained for longer than a few weeks.When the bamboo fruits and rice run out, the carrying capacity reverts to the levelobserved before the bamboo began to fruit. A). Describe what is happening to the population size.arrow_forward
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