Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 46, Problem 8TY
Summary Introduction
Introduction:
The diminishing of a species or organisms from the earth is termed as extinction of that species. The moment of extinction occurs, when the last organism of the species dies, resulting in the loss of breeding or reproduction capacity.
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A conservation organization has hired you to lead efforts to reduce the loss of biodiversity in a tropical country. Which of the following problems would you focus on first and why: habitat destruction and fragmentation, hunting and fishing activity, harvesting of wild species for commercial sale, or introduction of exotic organisms?
What can you do to change the loss of biodiversity that is occurring? What can we, the human population, do?
The Facts: Choose a fact and explain its impact to you, to the world, to the environment
What is the relationship between a pioneer species and primary succession?
A pioneer species is an invasive species that causes areas to experience primary succession.
There is not a relationship between a pioneer species and primary succession. The pioneer species only occurs in areas of secondary succession.
A pioneer species is important in an area of primary succession because it can grow and thrive in areas where most other species cannot.
A pioneer species only inhabits areas of primary succession.
Chapter 46 Solutions
Principles of Biology
Ch. 46.1 - If the population pyramid in (a) was inverted,...Ch. 46.1 - Prob. 2CCCh. 46.1 - Prob. 1TYKCh. 46.1 - The total fertility rate is highest in Latin...Ch. 46.2 - Prob. 1CCCh. 46.2 - Prob. 1TYKCh. 46.2 - Prob. 2TYKCh. 46.3 - Prob. 1CCCh. 46.3 - Prob. 1BCCh. 46.3 - Prob. 1TYK
Ch. 46.3 - Prob. 2TYKCh. 46.4 - Prob. 1TYKCh. 46.5 - Prob. 1TYKCh. 46.6 - Prob. 1TYKCh. 46.6 - Prob. 2TYKCh. 46.7 - Prob. 1BCCh. 46.7 - Prob. 2BCCh. 46.7 - Prob. 1TYKCh. 46.7 - Prob. 2TYKCh. 46 - Prob. 1TYCh. 46 - Prob. 2TYCh. 46 - Prob. 3TYCh. 46 - Prob. 4TYCh. 46 - Prob. 5TYCh. 46 - Prob. 6TYCh. 46 - Prob. 7TYCh. 46 - Prob. 8TYCh. 46 - Prob. 9TYCh. 46 - Prob. 10TYCh. 46 - Prob. 1CCQCh. 46 - Prob. 2CCQCh. 46 - Prob. 3CCQCh. 46 - Prob. 1CBQCh. 46 - Prob. 2CBQ
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- The _______________ signifies that species richness is greater where two communities meet than at the center of either community. (a) edge effect (b) fundamental niche (c) character displacement (d) realized niche (e) limiting resourcearrow_forwardWhen an invasive species alters the community structure it is introduced to, what can the consequence be? a. extinction of economically important species b. reduced predation on some native species c. increased predation on some native species d. all of the abovearrow_forwardA limiting resource does all the following except that it (a) tends to restrict the ecological niche of a species (b) is in short supply relative to a species need for it (c) limits the presence of a species in a given community (d) results in an intermediate disturbance (e) may be limiting for only part of an organisms life cyclearrow_forward
- The first species to live on new land, such as that formed from volcanic lava, are called_________. a. climax community b. keystone species c. foundation species d. pioneer speciesarrow_forwardComplete competitors cannot coexist is a statement of the principle of (a) primary succession (b) limiting resources (c) Mllerian mimicry (d) competitive exclusion (e) character displacementarrow_forwardWhich of the following is NOT one of the main causes of today’sbiodiversity crisis?a. Natural disasters, such as earthquakesb. Habitat destruction and degradationc. Overexploitationd. Introduction of nonnative speciesarrow_forward
- Which of the following are components of a species' ecological niche? It's habitat which species it competes with The species it co-operates with All of the above are components of the ecological nichearrow_forwardA keystone species is not necessarily abundant in a community but has a large impact on surrounding species and community structure. True O Falsearrow_forwardExamples of ecological restoration include all of the following EXCEPT: - building levees to minimize the water that enters a floodplain. - eliminating invasive species. - replanting a forest. - removing a dam. - using periodic, controlled burns to promote native prairie plants in an abandoned farm field.arrow_forward
- A keystone speciesa. is always a carnivore.b. has a minor influence on community structure.c. has a major influence on community structure out of proportion to its numbers.d. has a major influence on community structure only when present in large numbers.arrow_forwardWhich of the following attributes of a community would tend to lead to higher species richness? High specialization of species A broad resource spectrum High population size in each species Both a and b Both b and carrow_forwardearly successional species tend to, and later successional species tend to be good colonizers, grow quickly grow quickly, be good colonizers grow slowly, tolerate low resource levels grow quickly, be shade tolerantarrow_forward
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