Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Chapter 16, Problem 3FTB
Formation of a new species occurs when two populations of an existing species first become ________ and then __________. The process in which geographic separation of parts of a population leads to the formation of new species is called _________. Isolated populations may diverge through the action of _______ or __________.
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The process by which many new species arise in a relatively short period of time is known as________ . This process often occurs when a species arrives in a previously unoccupied_______ .
In sympatric speciation (fill in the blank) can result in (fill in the blank) and lead to formation of new species from a population that (fill in the blank)
fill in the blank with the following:
is geographically isolated, gene flow, reproduction isolation, is in the same environment, genetic drift, or ecological isolation
When a species diverges into two new species over time. This is referred to as
Chapter 16 Solutions
Biology: Life on Earth
Ch. 16 - 1. A species is a group of _________ that evolves...Ch. 16 - 2. Fill in the following with the appropriate...Ch. 16 - 3. Formation of a new species occurs when two...Ch. 16 - Prob. 4FTBCh. 16 - Prob. 5FTBCh. 16 - Define the following terms: species, speciation,...Ch. 16 - Review the material on the possibility of...Ch. 16 - Many of the oak tree species in central and...Ch. 16 - 4. A drug called colchicine prevents cell division...Ch. 16 - What are the two major types of reproductive...
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- Which of the following statements is false? a. Gradual speciation is most likely to occur in a large population that lives in a stable climate. b. Punctuated equilibrium is unlikely to occur in a large population that lives in a stable climate. c. Gradual speciation and punctuated equilibrium both result in the divergence of species. d. Gradual speciation is most likely to occur in a small population that experiences a rapid change in its environment.arrow_forwardA species is a group of_________ that evolves___________. The biological species concept identifiesspecies on the basis of their_________ . The biologicalspecies concept cannot be applied to species that reproduce_______________.arrow_forwardWhich of the following scenarios best explains how resource partitioning can lead to adaptive radiation? The lack of competition between individuals leads to better survival and reproduction rates. The utilization of different resources requires different adaptations, selecting for different traits. The lack of competition leads to a more balanced ecosystem, resulting in more offspring. There is no connection between adaptive radiation and the resource partitioning in nature.arrow_forward
- What is Allopatric speciation? A) When a population is separated from the main group by a barrier and becomes a new species B) When a population mutates into a new species C) When a population develops into a new species without any physical barriers to isolate themarrow_forwardIf the phylogenetic species concept (PSC) were used to define species, rather than the biological species concept (BSC), how might that change the estimates of species diversity (numbers of species) on a worldwide basis? True or False: Estimates of species diversity are likely to change if the PSC is used. In particular, one would expect the number of species to increase. This is because individuals from divergent allopatric populations that can potentially interbreed would belong to the same species under the BSC. These same organisms would be classified as members of different species under the PSC.arrow_forwardPlace a species distribution in order from smallest to largest. Group of answer choices Geographic range < Population < Metapopulation Geographic range < Metapopulation < Population Metapopulation < Population < Geographic range Population < Metapopulation < Geographic rangearrow_forward
- Which of the following is a conclusion drawn by the authors from the results of this study? Temperate marine invertebrate species are outcompeting endemic species which will soon become extinct in the surveyed areas. Tropical marine invertebrate species did replace temperate species from 1982 to 2021 in the surveyed areas. Tropical marine invertebrate species did not replace temperate species from 1982 to 2021 in the surveyed areas. The temperate marine invertebrate species density and richness will recover with sufficient monitoring and resources. Article Reference: Responses of intertidal invertebrates to rising sea surface temperatures in the southeastern Indian Ocean By: Fred E. Wellsarrow_forwardThis type of species isolation is being used during allopatric speciation. Group of answer choices: A- behavioral B- habitat C- gametic D- mechanical Please give me the answer along with the reason. I'll definitely give a like.arrow_forwardWhat are characteristics of sympatric speciation? Select all that apply. Reproductive isolation necessary to end gene flow Divergence within a population leads to speciation Absence of a physical barrier Presence of a physical barrier Reproductive isolation unnecessary to end gene flowarrow_forward
- Which community would be expected to have the highest species richness? Group of answer choices A community that inhabits a small geographic area near the poles. A community that inhabits a small geographic area near the equator. A community that inhabits a large geographic area area near the poles. A community that inhabits a large geographic area near the equator.arrow_forwardThe theory of island biogeography suggests that island colonization is affected by which of the following factors? Allopatric speciation Ecological tolerance Adaptative evolution Migration rates A) II only B) IV only C) I and II D) II and IIIarrow_forwardWhen a new habitat is first exploited by a species, we expect to see rapid diversification of many new species. This is called • punctuated equilibria • adaptive radiation•explosive adaptation• mass speciationarrow_forward
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