16. Which is not a cause of extinction?.A. Animals eat too muchB. Habitat loss C. Natural disastersD. over-hunting17. How can you help prevent extinctions?A. By not polluting our environment.B. By protecting sensitive habitats and species.C. By not eating or buying products from endangered animals.D. By allowing other people to hunt for their food.18. Which of the following was a natural factor that caused extinctions?A. Changes in the oxygen levelsC. Over harvestingB. Habitat destructionD. Pollution19. What do most scientists think caused the mass extinction of dinosaurs and other organismsat the end of the Cretaceous period?A. An object from space struck Earth.B. An ice age covered most of Earth with ice.C. The dinosaurs ate too many other organisms and then starved.D. Volcanic eruptions covered large areas with lava.20. This.is the extinction of a species one by one, not a sudden loss of many speciesA. Background extinctionB. Biotic potentíalC. FragmentationD. Mass extinction

Question 16 Habitat loss, natural disasters and over hunting have been established causes of animal…

16. Which is not a cause of extinction? A. Animals eat too much B. Habitat loss C. Natural disasters D. over-hunting 17. How can you help prevent extinctions? A. By not polluting our environment. B. By protecting sensitive habitats and species. C. By not eating or buying products from endangered animals. D. By allowing other people to hunt for their food. 18. Which of the following was a natural factor that caused extinctions? A. Changes in the oxygen levels B. Habitat destruction C. Over harvesting D. Pollution

16. Which is not a cause of extinction? A. Animals eat too much B. Habitat loss C. Natural disasters D. over-hunting 17. How can you help prevent extinctions? A. By not polluting our environment. B. By protecting sensitive habitats and species. C. By not eating or buying products from endangered animals. D. By allowing other people to hunt for their food. 18. Which of the following was a natural factor that caused extinctions? A. Changes in the oxygen levels B. Habitat destruction C. Over harvesting D. Pollution

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter21: Conservation And Biodiversity

Section: Chapter Questions

Problem 8RQ: Certain species of parrot cannot be brought to the United States to be sold as pets. What is the...

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C. Destruction of the Yellowstone ecosystem D. Reduction in the coyote population, increasing the raptor population 37. Which of the following are things you can do to help preserve biodiversity? A. Volunteer with citizen science or other organizations like it B. Buy park passes and visit the parks respectfully C. Live more sustainably by making eco-friendly consumer choices D. All of the above
What is CITES? Group of answer choices A. Its aim is to ensure that international trade in specimens of wild animals and plants does not threaten their survival. B. an international agreement between governments C. All of the answers are correct D. the Convention on International Trade in Endangered Species of Wild Fauna and Flora
Certain species of parrot cannot be brought to the United States to be sold as pets. What is the name of the legislation that makes this illegal? a. Red List b. Migratory Bird Act c. CITES d. Endangered Species Act (ESA)
8. When there are absolutely no individuals left from a specific type of species, we consider them to be? * A. Threatened B. Extinct C. Endangered D. Invasive 9. Biodiversity can affect the stability of ecosystems and the sustainability of populations. * A. True B. False C. Maybe D. Not at all
Why does the aquarium trade contribute to the introduction of nonnative species? a. Exotic species can escape or be released into local ecosystems. b. Aquarium owners do not always understand how ecosystems interact. c. Nonnative fish are shipped worldwide for aquariums. d. All of the above Please select the best answer from the choices provided A B C D
1. When the rare Asiatic lion (Panthera leo persica) was reintroduced to the Chakia forest of India in 1957, their population size increased briefly, then disappeared by the late 1960s: A. probably because they were more accustomed to living in the city B. probably because they had less than half of the habitat space that they needed C. probably because they were hunted to extinction by humans D. probably because they got into territorial fights with the Siberian tiger E. probably because they were poisoned by DDT
49. In what way can deforestation, building of dams, conversion of forest to agricultural lands and urban development could cause species to decrease in number which, eventually, could lead to extinction? A. They pollute the environment causing species to die. B. They cause widespread of diseases which may lead to mass extinction. C. They cause widespread of diseases which may lead to mass extinction. D. They cause widespread of diseases which may lead to mass extinction. 50.Assume two habitats have the same number of species of birds. The first habitat is predominantly one species of bird, with just a few birds of the other species. The second habitat has equal number of all the different bird species found in habitat 1. Will they have the same biodiversity index? If yes, why? If not, which will have the higher biodiversity index, and why? A. Yes, bonUse they have eyu B. Yes, they will have the same biodiversiy species. C. No, habitat 1 has a higher diversity because it is…
10. What can destroy the amount of resources in an ecosystem? anvellot a a. Natural disasters. b. Tornados only. C. Hurricanes only. d. Tsunamis only. 11. If a natural disaster devastates an ecosystem, what will this do to the carrying capacity of the population of a species within that ecosystem? a. Increase it. b. Will not affect it, so it will stay the same. C. Always reduce it down to zero. d. Decrease it. 12. By which activity can humans change the carrying capacity of the population of a species? a. Studying the niches of particular species. b. Compiling a list of habitats in an ecosystem. C. Manipulating resources in its natural environment. d. Convincing it to reduce its carbon footprint. 13. If the population of a species is greater than its carrying capacity for a long time, what can that do to available resources in its ecosystem? a. Deplete them completely. b. Double the amount. c. Nothing, as there is no causal relation. d. Triple the amount.
4. Which of the following species, either presently or formerly listed as endangered or threatened, has never been a real threat to human lives? A. grizzly bears in Yellowstone National Park B. gray wolves in Yellowstone National Park C. whooping cranes in Canada and Texas D. polar bears in the Alaskan wilderness E. mountain lions in California
If you are studying the changes in the panda population in Asia you are most likely considered a…. a. Population ecologist b. Ecosystem ecologist c. Global Ecologist d. Community ecologist
25. Why is blodiversity importantr Blodiwardty A. Disease resistant plants in wild B. Plants provide oxygen, natural processes clean water C. Beauty and scientific value D. All of the above 24. What happens to biodiversity as you go further away from the equator? A. Increases B. Decreases C. Stays the same 25. When talking about biodiversity, the term "hotspots" refers to areas that have a lot of A. pollution B. global warming C. endemic species D. endangered species 26. A biologist is searching for a new plant-based antibiotic. In which of the following types of ecosystems would the biologist have the best chance of finding new kinds of plants to use in her research (which is the most biodiverse area of the options below)? A. highland desert B. temperate deciduous forest C. polar tundra D. tropical rainforest 27. The wetland plant purple loosestrife was imported to North America from Europe. Since its introduction, the loosestrife has spread, which has resulted in a dramatic decline…
16. Tamaraw has been in the critically endangered list since the year 2000. One of the reasons is the habitat destruction that forced them to move further inland into the thick forest. Which of the following factors affect the population of the tamaraw? * A. disease and parasites B. emigration C. predation D. competition for resources 17. What conservation status is referred when there is no reasonable doubt that the last individual has died such as to what happen to the Saber-toothed tiger and Dodo? * A. Endangered B. Extinct C. Vulnerable D. Critically endangered