Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 47, Problem 24CTQ
Describe what happens to an ecosystem when keystone species is removed.
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Chapter 47 Solutions
Biology 2e
Ch. 47 - Figure 47.6 Scientists measured the relative...Ch. 47 - Figure 47.9 The Svalbard Global Seed Vault is...Ch. 47 - Converting a prairie to a farm field is an example...Ch. 47 - Figure 47.16 Which of the following statements is...Ch. 47 - With an extinction rate of 100 E/MSY and an...Ch. 47 - An adaptive radiation is.__________ a burst of...Ch. 47 - The number of currently described species on the...Ch. 47 - A mass extinction is defined as. a loss of 95...Ch. 47 - A secondary plant compound might be used for which...Ch. 47 - Pollination is an example of_____________ a...
Ch. 47 - What is an ecosystem service that performs the...Ch. 47 - Which two extinction risks may be a direct result...Ch. 47 - Exotic species are especially threatening to what...Ch. 47 - Certain parrot species cannot be brought to the...Ch. 47 - What was the name of the first international...Ch. 47 - About what percentage of land on the planet is set...Ch. 47 - Describe the evidence for the cause of the...Ch. 47 - Describe the two methods used to calculate...Ch. 47 - Explain how biodiversity loss can impact crop...Ch. 47 - Describe two types of compounds from living things...Ch. 47 - Describe the mechanisms by which human population...Ch. 47 - Explain what extinction threats a frog living on a...Ch. 47 - Describe two considerations in conservation...Ch. 47 - Describe what happens to an ecosystem when...
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- Explain why invasive organisms are so problematic for the ecosystems they have been introduced into.arrow_forwardDescribe what would happen to an ecosystem if a keystone species disapeared out of the food webarrow_forwardWhat is a keystone species? How can a keystone species within a community be identified?arrow_forward
- describe a local ecosystem and how many population can be impacted due to a short-term environmental changearrow_forwardDescribe about a keystone species role in its ecosystem and why it is considered a keystone species. How would the loss of this keystone species impact the biodiversity of the ecosystem it lives in?arrow_forwardPlease help me to answer part a-b Thank you a) Define the two terms "keystone species" and "trophic cascade." b) Give an example of a keystone species that causes a trophic cascade when removed from its ecosystem. Name the species and briefly describe what happens when it is removed.arrow_forward
- Predators that are keystone species can maintain species diversity in a community if theya) reduce the number of disruptions in the community.b) prey only on the least abundant species in the community.c) prey on the community's dominant species.d) competively exclude other predatorsarrow_forward1. a)Write an essay on ecosystem productivity. b) Define ecological pyramid and indicate the limitations of ecological pyramids. c) Explain why detritivores, decomposers and omnivores are not assigned trophic level.arrow_forwardDescribe how we can preserve nonreplaceable resources.arrow_forward
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