The 1983 El Niño event had many climatic and ecological effects in the eastern equatorial Pacific Ocean and Galapagos Islands. Which of the following was not one of these effects? O There were reproductive failures by many sea bird species because there were less fish to eat O Recruitment by ground finch (a terrestrial bird species) decreased O Rainfall and temperature were greater than normal O Marine primary production declined because of poor nutrient supply

The 1983 El Niño event had many climatic and ecological effects in the eastern equatorial Pacific Ocean and Galapagos Islands. Which of the following was not one of these effects? O There were reproductive failures by many sea bird species because there were less fish to eat O Recruitment by ground finch (a terrestrial bird species) decreased O Rainfall and temperature were greater than normal O Marine primary production declined because of poor nutrient supply

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter20: Ecosystems And The Biosphere

Section: Chapter Questions

Problem 15CTQ: The extremely low precipitation of subtropical desert biomes might lead one to expect fire to be a...

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The extremely low precipitation of subtropical desert biomes might lead one to expect fire to be a major disturbance factor; however, fire is more common in the temperate grassland biome than in the subtropical desert biome. Why is this?
In terrestrial ecosystems, the energy and biomass pyramids are the same in that they store the most at the bottom trophic levels (with primary producers). However, in aquatic ecosystems, the pyramids are inverted. Why is this? O None of these answers is correct. O Aquatic ecosystems have fewer plants and other autotrophs Aquatic ecosystems have more keystone predators Aquatic ecosystems have fewer decomposers Aquatic ecosystems have more types of filter feeders
Recent research has suggested that globalwarming is contributing to the increased fre-quency and severity of El Niño events. Thiscan cause severe drought in India andAfrica, as well as greatly reduce fish catch inparts of the Southern Hemisphere. Shouldthe responsibility for decreasing greenhousegas emissions be greater for more-developedcountries (MDCs) because they produce agreater amount of greenhouse gases percapita than less-developed countries(LDCs), even though El Niños have moresevere consequences for LDCs? Aside from the recent increases in gasolineprices, would you consider buying a morefuel-efficient car or spend more on planeflights to purchase "carbon credits" to doyour part in decreasing the emission ofgreenhouse gases such as carbon dioxide?Why or why not?
The Law of 10% in trophic levels states O Only 10% of the energy in a trophic level is transferred to the next tropic level by consumption O Only 10% of the prey are eaten by a top predator O 10% of the energy is lost between one trophic level to the next O 10% of the energy in an ecosystem is heat energy
At which trophic level would you expect the highest amount of biomass? O carnivore O primary consumer O herbivore top carnivore O primary producer
(25) | Microsoft T: 6X E EverFi Educatic -er| Portal henrico.schoology.com Q2 End of 9 Weeks Test What is one negative aspect of utilizing wind turbines on the peak of mountains? O They can interfere with the migratory routes of birds O The energy produced is a toxic waste that can not be easily destroyed O The cost of maintaining a wind turbine outweighs the energy that will be produced O They pollute the air with atmospheric emissions e Type here to search
Explain how the three major types of deserts differin their climate and vegetation. Why are desert ecosystems vulnerable to long-term damage? How dodesert plants and animals survive? Explain how thethree major types of grasslands differ in their climateand vegetation. What is a savanna? Explain howsavanna animals survive seasonal variations in rainfall (Core Case Study). Why is the elephant an important component of the African savanna? DescribeTuy Sereivathana’s efforts to prevent elephants frombecoming extinct in Cambodia. Why have manyof the world’s temperate grasslands disappeared?Describe Arctic tundra and define permafrost?Explain how the three major types of forests differin their climate and vegetation. Why is biodiversityso high in tropical rain forests? Why do most soils intropical rain forests hold few plant nutrients. Whydo temperate deciduous forests typically have a thicklayer of decaying litter? What are coastal coniferousor temperate rain forests? How do most species…
Why are food chains relatively short? O Not enough energy is transferred from one trophic level to the next to support a longer chain. O There are not enough species of carnivores to make the food chain longer. O Longer food chains require more land that is found in today's fragmented habitats. There aren't enough different plant species to support enough herbivore species to support the number of carnivore species needed for longer food chains.
Food chains are typically short in the tundrabecause primary production is lower than in mostother ecosystems.
To protect coastal cities from storm surges associated with hurricanes and typhoons, it is best to make sure that there are extensive sandy beaches build pumping systems O protect mangrove forests encourage development near the coast build extensive systems of dams and aqueducts
Which of the following threats to terrestrial biomes is FALSE? O Exploration of oil and gas threaten both boreal forest and tundra ecosystems. O Climate change, farming practices, and overgrazing are leading to the desertification of tropical savannas. O Logging for timber poses a greater threat to tropical rain forests compared to effects of large-scale agriculture. O Human-mediated changes in the frequency and intensity of fire are threatening Mediterranean shrublands.
Pork production is a 9 billion dollar industry for the state of North Carolina. However, the toxic waste lagoons have impacted the surrounding ecosystem. What is the most predominant effect of lagoon waste runoff? O A. An increase in the quality of the pork produced O B. An increase in outbreaks of harmful algal blooms that result in fish kills O C. An increase in deforestation O D. An increase in biodiversity