- The factor that likely poses the greatest threat of extinction of species worldwide is (A) weakening of environmental legislation (B) increase in hunting and fishing (C) aggressive collecting of specimens by museums and zoos (D) black-market trade in endangered species (E) increasing loss of habitat

- The factor that likely poses the greatest threat of extinction of species worldwide is (A) weakening of environmental legislation (B) increase in hunting and fishing (C) aggressive collecting of specimens by museums and zoos (D) black-market trade in endangered species (E) increasing loss of habitat

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter55: Biodiversity And Conservation Biology

Section: Chapter Questions

Problem 2TYK

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Figure 45.10b If the major food source of the seals declines due to pollution or overfishing, which of the following would likely occur? The carrying capacity of seals would decrease, as would the seal population. The carrying capacity of seals would decrease, but the seal population would remain the same. The number of seal deaths would increase but the number of births would also increase, so the population size would remain the same. The carrying capacity of seals would remain the same, but the population of seals would decrease.
1. What makes an ecosystem resilient? 2. Explain the immediate and secondary effects of removing otters from a kelp forest ecosystem. Use the words: keystone species, biodiverse/biodiversity
1) What makes an ecosystem resilient? 2) Explain the immediate and secondary effects of removing otters from a kelp forest ecosystem. (use the word: keystone species, biodiverse/biodiversity)
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3)"Ecosystem engineers" are a special group of keystone species a)True b)False
1. Why is that there are no more than 5 or 6 trophic levels in a community? 2. Why do we need to conserve or protect threatened or endangered species, and how does the loss of species affect communities? 3. Why are population sizes not constant?
2) Explain the immediate and secondary effects of removing otters from a kelp forest ecosystem. (use the word: keystone species, biodiverse/biodiversity)
The first species to live on new land, such as that formed from volcanic lava, are called__________. climax community keystone species foundation species pioneer species
What kind of ecosystem are exotic species especially threatening to? a. deserts b. marine ecosystems c. islands d. tropical forests
The type of physical environment in which a species typically lives is its _______. a. niche b. habitat c. community d. population
Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.
Converting a prairie to a farm field is an example of.__________ overharvesting habitat loss exotic species climate change