Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 17, Problem 5FIB
A species may be at higher risk of extinction if its geographic range includes a(n) ________ area, or if its food or habitat requirements are ______. The leading direct cause of extinction is __________.
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Chapter 17 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 17.1 - The tiny frog paedophryne amauensis was discovered...Ch. 17.1 - describe how biologists define species and explain...Ch. 17.1 - One way to determine the number of species on...Ch. 17.1 - Prob. 1TCCh. 17.1 - describe the biological species concept and...Ch. 17.1 - list some reasons why it can be hard to tell...Ch. 17.2 - describe the main types of premating and...Ch. 17.2 - provide examples of each type of mechanism?Ch. 17.3 - It is not surprising that the forests of New...Ch. 17.3 - describe the two general steps that are required...
Ch. 17.3 - Make a list of events or processes that could...Ch. 17.3 - One possible explanation for the distinctive...Ch. 17.3 - explain the difference between allopatric and...Ch. 17.3 - How might conservation scientists use the map...Ch. 17.3 - explain adaptive radiation and describe the...Ch. 17.3 - Prob. 3TCCh. 17.3 - interpret an evolutionary tree diagram?Ch. 17.3 - Prob. 4TCCh. 17.4 - Prob. 1CTCh. 17.4 - describe the main causes of extinction?Ch. 17.4 - If specialization puts a species at risk for...Ch. 17.4 - Prob. 2CYLCh. 17.4 - Given that genetic isolation is the first step in...Ch. 17 - It is difficult to perform experiments that test...Ch. 17 - A species is a group of ________ that evolves...Ch. 17 - The biological species concept is difficult or...Ch. 17 - Define the following terms: species, speciation,...Ch. 17 - Fill in the following with the appropriate...Ch. 17 - Which of the following does not describe a...Ch. 17 - Many of the oak tree species in central and...Ch. 17 - Formation of a new species occurs when two...Ch. 17 - All instances of speciation require a. genetic...Ch. 17 - Review the material on the possibility of...Ch. 17 - The process by which many new species arise in a...Ch. 17 - Analysis of Rhagoletis fly populations in North...Ch. 17 - A drug called colchicine prevents cell division...Ch. 17 - A species may be at higher risk of extinction if...Ch. 17 - In the initial phase of allopatric speciation,...Ch. 17 - What are the two major types of reproductive...
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- A 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_forwardSeveral alternative definitions of the term species have been proposed, recognizing different species, definitions raises conceptual problems, but it does not have practical implications for conservation true or falsearrow_forwardIn a species of water snake has populations on the mainland and on an island, snakes are regularly washed from the mainland to the island where they become part of the breeding population on the island. For the island population, this violates the assumption of ______________________ because the evolutionary mechanism of________________ is present.arrow_forward
- Match the definitions on the left with the vocabulary words on the right. The level of diversity within a given species The number of different species within a specific region or area The variety of ecosystems in a given region or area the degree to which different species in a given ecosystem, or area, depend on other species in that area for survival ::species interdependence :: ecosystem diversity genetic diversity species diversityarrow_forwardIs the species a generalist or a specialist and how does this niche impact the species of the wild. The giant panda, native to China, and the raccoon, native to North America, share a common ancestor. However, their current status in the wild is anything but common. Raccoons are thriving. Opportunists by nature, raccoons forage on a variety of plants and animals in their ecosystem. Highly inquisitive and intelligent, raccoons use their opposable thumbs to crack open shells, investigate dens, and sift through rocky streams in search of crayfish. Although their habitats are shrinking, raccoons have adapted well to human encroachment and will actively seek food and shelter among the human communityarrow_forwardComplete the table below?arrow_forward
- Visit the website of International Union of Conservation of Nature (IUCN) and open the Red List of Threatened Species, https://www.iucnredlist.org/. Research a species (plant or animal) of your choice, submit your findings containing the following information: Species name and picture UICN status Species origin Population size Threats Conservation Actionarrow_forwardOverfishing key species to near extinction, and polluting them with carbon dioxide emissions, toxic chemicals, garbage, and discarding plastics are all _____________________ What is predicted to happen if people do not change their attitude towards the oceans and marine life? A chemical process that drains the organisms of their brilliant colors and leads to their death is_____________ ‘…every kind of fish is going to be potentially hazardous’ if ____________ The Great Pacific Garbage Patch is an example of ________________ With global plastic production doubling every 10 years, _________________ A hugely destructive technique that involves dragging a large net ___________ The authors of the Science study say it's possible to reverse the current crisis, but _______________________ Emissions from factories and power plants have pushed mercury concentrations in oceans and fish, Tilefish, shark, swordfish, king mackerel, and white tuna — all of which contain particularly high levels of…arrow_forwardThe 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_______ .arrow_forward
- The most at-risk groups of extinction are conifers and amphibians Group of answer choices True Falsearrow_forwardAn aquatic community with marshland conditions, the most common plant species being bulrush, and the most common animal species being muskrat, should be named _____ according to the rules of organizing communities Marshland community Bulrush marshland Muskrat community Bulrush communityarrow_forwardYou are part of a restoration ecology program that is attempting to reintroduce an endangeredbird to a new habitat in Michigan, where they have been locally extinct for decades. The species went through an extreme bottleneck after they were almost wiped-out due to insecticide use in the 1960s. Maintaining what limited genetic diversity remains is an important priority, especially because disease spread from other bird speciesrepresents a major threat to the struggling populations of these birds. Captive-bred warblersdestined for this site have been genotyped at a neutral marker locus “D” with two alleles, D95and D135. The genotype counts in the captive animals are as follows:D135/D135 = 12, D135/D95 = 20, and D95/D95 = 48 2a. If all the species are used to start the new population, what is the probability that thepopulation eventually becomes fixed for allele D95 through drift?2b. Let’s assume the population stays the same size (as the number of introduced individuals) inthe new…arrow_forward
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