Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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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.
3. Compare the definitions between density-dependent factors and density-independent factors. Give examples for each.
✓ ✓ ✓ ✓
Density-Dependent Factors:
Example:
Density-Independent Factors:
Example:
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_forwardMatch 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_forward
- 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 offspringarrow_forward4. Explain how abiotic factors regulate population abundance. Describe what kinds of abiotic factors regulate populations. Give an example.arrow_forward1. Hunting is one way of reducing population size. Wildlife managers closely watch changes in population numbers of all wildlife species in order to determine legal hunting ‘bag limits’ for each hunter. Depending on changes in population size, hunting bag limits are changed from year to year. In each of the following scenarios, suggest what changes might have occurred in the population in the previous year to warrant these changes in bag limits. (Address all four factors that affect population size.) a.) The mallard duck bag limit has increased from four ducks/day to eight ducks/day. b.) The previous year 1 female black bear could be taken, and up to 3 males could be taken. This year no females can be taken.arrow_forward
- 6. Draw a simple graph that illustrates the general relationship between organism size and population density. Place body size on the x-axis and population density on the y-axis.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_forward5. 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_forward
- 26. 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_forward6. Which of the following statements about biotic potential is TRUE? * Biotic potential of an organism is determined by how they interact with the environment. Increase in food supply increases the biotic potential of an organism. O If an organism has higher rate of reproduction, it has higher biotic potential. Small organisms have low biotic potential because of their size. 7. An 'overshoot' in a population occurs when O the mortality of the population exceeds the natality. O the replenished resources in an ecosystem equals the natality. the natality of the population does not decrease with respect to the replenished resources. the ecosystem is damaged or destroyed. 8. Which of the following is most likely to occur if there is an 'overshoot' in a population? * Rate of immigration of individuals increases. Competition occurs and there is a rapid decrease in the population. The ecosystem will collapse because of the limited resources. The species will be endangered.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
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