Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Chapter 17, Problem 4FTB
Summary Introduction
To review:
The given blank space in the statement, “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 arises in a previously unoccupied ______.”
Introduction:
When species of a population are introduced with new and different environmental changes they tend to modulate their structural configuration and functional aspects accordingly. Organism chooses the best suitable habitat, and then adapts itself to its surroundings. This manages the species to evolve at a very gradual level in order to meet the challenges present in the environment.
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Chapter 17 Solutions
Biology: Life on Earth (11th Edition)
Ch. 17 - The biological species concept is difficult or...Ch. 17 - 2. Which of the following does not describe a...Ch. 17 - 3. All instances of speciation require
a. genetic...Ch. 17 - Analysis of Rhagoletis fly populations in North...Ch. 17 - In the initial phase of allopatric speciation,...Ch. 17 - 1. A species is a group of _________ that evolves...Ch. 17 - 2. Fill in the following with the appropriate...Ch. 17 - 3. Formation of a new species occurs when two...Ch. 17 - Prob. 4FTBCh. 17 - Prob. 5FTB
Ch. 17 - Define the following terms: species, speciation,...Ch. 17 - Many of the oak tree species in central and...Ch. 17 - Review the material on the possibility of...Ch. 17 - 4. A drug called colchicine prevents cell division...Ch. 17 - What are the two major types of reproductive...Ch. 17 - 1. It is difficult to perform experiments that...
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- Many endemic species are found in areas that are geographically isolated. Suggest a plausible scientific explanation for why this is so.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_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
- This 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_forwardAll species, both past and present, are related to one another through a(n) ______ history.arrow_forwardAccording to the morphological species concept, would you classify benthics and limnetics as A) a single species B) separate species C) the species status is not clear according to this species concept. Explain in 2-3 sentences. (I think the answer is separate species, not sure how to explain this...)arrow_forward
- What is the nature of the reproductive barrier between a species that mates at dawn (sunrise) and a species that mates at dusk (sunset)? gametic temporal habitat behavioral mechanical A mountain range divides a freshwater snail species into two isolated populations. Erosion eventually lowers the range and brings the two populations together again, but when they mate, the resulting hybrids all produce sterile young. This scenario is an example of allopatric speciation gradualism punctuated equilibrium extinction sympatric speciationarrow_forwardThe first step toward speciation is isolation of populations. It means that the populations need to be physically separated from each other. -True -Falsearrow_forwardWhich of the following is not part of how we definea species?a. Its individuals appear different from other species.b. It is reproductively isolated from other species.c. Its populations can interbreed.d. Fertile offspring are produced.arrow_forward
- Which of the following is not part of how we define a species? a. Its individuals appear different from other species. b. It is reproductively isolated from other species. c. Its populations can interbreed. d. Fertile offspring are produced.arrow_forwardThe first step leading to allopatric speciation is (a) hybrid inviability (b) hybrid breakdown (c) adaptive radiation (d) geographic isolation (e) paedomorphosisarrow_forwardSelect the correct terms: Speciation due to geographic separation and (genetic divergence / gene flow) of two populations is considered (allopatric / sympatric) speciationarrow_forward
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