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coffeeguinea-pig876Lv1

28 Sep 2019

How do animals deal with extreme seasonal changes?Describe the seasonal variations in deserts versus tropical rainforests.

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10 Mar 2023

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Clear-cutting and logging of tropical rainforests cause issues with excess carbon dioxide in the atmosphere and low rainfall. The land that is cleared and used for farming become depleted of nutrients and thus are useless. Do we have any right to tell other countries how to manage their lands, such as rain forests? If we explain the consequences of clear-cutting the rainforests but that government decides to continue with the process, should we interfere?

Choosing the correct animal model is critical to successful experimentation and hypothesis testing. Birds have been used to study the effects of hormones on male reproductive behavior since Berthold's work on roosters. Describe an advantage and a disadvantage to using each of the following animal models to study male reproductive behavior.

a. White throated sparrows â these birds are seasonal breeders who show courtship behavior (singing to display territory, fighting with other males, displays to females) in the spring.

b. Ring doves

c. Tropical kingbirds â these birds are found in South America and are (for the most part) non-migratory. They respond to photoperiod like a white throated sparrow but can breed year round when resources are available.

d. Japanese quail

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We have used the the community of Monteverde, Costa Rica as a case study of conservation and development in the tropics. Monteverde is a farming community founded in 1951 by twelve Quaker families from Fairhope, Alabama.

During the first 30 years of its existence the community relied on dairy farming and the harvesting of forest products. What was the economy based on during this first 30 years?

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How do GDP (gross domestic product) estimates differ from GPI (genuine progress indicator) estimates for a country?

GDP takes into account the total value of goods and services in a country in addition to an estimate of environmental damage, while GPI only measures the value of goods and services

In almost all cases they are the same

GDP takes into account the total value of goods and services in a country, while GPI measures the value of goods and services in addition to environmental damage

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Recently, 10 states in India have reported arsenic contamination of their groundwater from industry and mining. This is an example of:

Perverse subsidy

The tragedy of the commons

Biomagnification

Direct use value

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What is the primary cause of yearly oscillations in carbon dioxide levels first observed by Charles Keeling at Mauna Loa observatory?

Seasonal burning of the Amazon rainforest

Seasonal changes in photosynthesis by plants

Seasonal changes in human fossil fuel emissions

Seasonal changes in the thickness of the ozone layer

Seasonal changes in the axis of the earth

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Question 232 pts

We have used the community of Monteverde, Costa Rica as a case study of conservation and development in the tropics. Monteverde is a farming community founded in 1951 by twelve Quaker families from Fairhope, Alabama.

Why did the founders originally decide to protect and preserve 1/3 of their initial land purchase?

They wanted to keep the forest to serve as a game reserve, since their economy was heavily dependent on local game

They were philosophically opposed to cutting down forest

They planned to turn the land into a mecca for ecotourism

They wanted to preserve the ecosystem services provided by the mountaintop

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