Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
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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- In the fynbos, the Argentine ant is regarded as a/n __________ species.arrow_forwardSpecies are organized on phylogenetic trees based on their ________ similarities and differences. morphological and biological morphological and biological genetic and morphological genetic and morphological genetic and chemicalarrow_forwardThe Abert and the Kaibab species of squirrels live on opposite ends of the Grand Canyon. Physically they are very similar to each other, which leads scientist to think that when the Grand Canyon was shallower (millions of years ago) the populations use to have genetic contact (sexual reproduction). In present day, they are completely isolated from each other. When tested the Abert and Kaibab squirrels cannot produce a fertile offspring. This is an example of ___ speciation. [Fill in the blank]arrow_forward
- Life history adaptations of ___________ populations are characterized by an early age of first reproduction and short maturation time and life span. (two words, often hyphenated)arrow_forwardA group of birds colonize an island. Over time, they become different from the mainland source population and reach the point where they can no longer interbreed with one another They are now called _________________ and the process is called ________________speciation. 1) 2) 3) 4)arrow_forwardWhich of the following classifications represents the ecological level with the greatest diversity? OEcosystem OPopulation OCommunity Ooganismarrow_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_forwardAerobic organisms are dependent on autotrophs. One reason for this dependency is that most autotrophs provide the aerobic organisms with oxygen. nitrogen gas. carbon dioxide. hydrogen. Two different species in a particular ecosystem share the same niche. What is most likely true about these two species? They are the result of an allopatric speciation event They compete intensely One is a predator, the other its prey They are the result of a sympatric speciation eventarrow_forwardGenetic variations within a species are most likely the result of? environmental changes followed by genetic mutation overpopulation and recombination gene mutations and sexual reproduction mitosis and asexual reproductionarrow_forward
- Many endemic species are found in areas that are geographically isolated. Suggest a plausible scientific explanation for why this is so.arrow_forwardWhy are nonnative species often considered a disturbance in an ecosystem? They increase mutations. They compete for resources. They have special growth needs. They cause increased biodiversity.arrow_forwardAfter fire devastates all of the trees in a wide swath of forest, populations of a species of tree-dwelling frog on either side of the burned area diverge and become separate species. This is an example of_______ .arrow_forward
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