Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 39, Problem 7WIO
Polar bears live on the ice cap near the North Pole. Their numbers are dwindling, apparently because of both pollution and global climate change. List some specific ways that the melting of the Arctic ice cap might affect polar bear populations.
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In addition to climate change, polar bears also face threats from pollution. Describe in two ways in which the polar bear population in the Arctic is affected by pollution. Give detailed explainations.
In 1970 the deer population of an island forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hunters, the wildlife service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd. In 1971, ten wolves were flown into the island. The data collected during this program are shown in the following table. The Population Change is the number of deer born minus the number of deer that died during that year. Fill in the last column for each year. The first has been calculated for you. Then graph the deer and wolf populations on the graph below.…
In 1970 the deer population of an island forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hunters, the wildlife service decided to bring in natural predators to control the deer population. It was hoped that natural predation would keep the deer population from becoming too large and also increase the deer quality (or health), as predators often eliminate the weaker members of the herd. In 1971, ten wolves were flown into the island. The data collected during this program are shown in the following table. The Population Change is the number of deer born minus the number of deer that died during that year. Fill in the last column for each year. The first has been calculated for you. Then graph the deer and wolf populations on the graph below.…
Chapter 39 Solutions
Biology: Concepts and Investigations
Ch. 39.1 - Prob. 1MCCh. 39.1 - What abiotic conditions influence the distribution...Ch. 39.2 - Prob. 1MCCh. 39.2 - Prob. 2MCCh. 39.2 - Prob. 3MCCh. 39.3 - How do climate and soil composition determine the...Ch. 39.3 - Infer one adaptation of plants and one adaptation...Ch. 39.3 - Prob. 3MCCh. 39.4 - Prob. 1MCCh. 39.4 - Prob. 2MC
Ch. 39.4 - Prob. 3MCCh. 39.5 - Prob. 1MCCh. 39.5 - Prob. 2MCCh. 39.5 - Prob. 3MCCh. 39.6 - Prob. 1MCCh. 39.6 - Prob. 2MCCh. 39 - Prob. 1MCQCh. 39 - Prob. 2MCQCh. 39 - Prob. 3MCQCh. 39 - AID: 1825 | 18/04/2018 5. Which of the following...Ch. 39 - A worm 1ha1 lives in lake sediment is in the...Ch. 39 - Prob. 6MCQCh. 39 - Prob. 1WIOCh. 39 - Explain why sunlight is most intense at the...Ch. 39 - Prob. 3WIOCh. 39 - Prob. 4WIOCh. 39 - Prob. 5WIOCh. 39 - Prob. 6WIOCh. 39 - Polar bears live on the ice cap near the North...Ch. 39 - Prob. 8WIOCh. 39 - Use the clues provided to determine which biome...Ch. 39 - Prob. 10WIOCh. 39 - Prob. 11WIOCh. 39 - Prob. 12WIOCh. 39 - Prob. 1PITCh. 39 - Prob. 2PITCh. 39 - What types of terrestrial biomes are likely to...
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