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 47.1, Problem 1TYK
In 1977, Rafael Guzman, a Mexican biologist, discovered a previously unknown wild relative of corn that is resistant to many of the viral diseases that infect domestic corn. Agriculturalists believe crossbreeding could improve current corn crops. In this case, biodiversity is important at which level?
- ecosystem
- community
- species
- both a and b
- genetic
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Chapter 47 Solutions
Principles of Biology
Ch. 47.1 - In 1977, Rafael Guzman, a Mexican biologist,...Ch. 47.2 - Prob. 1TYKCh. 47.2 - Prob. 2TYKCh. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 1BCCh. 47.3 - Prob. 1TYKCh. 47.3 - Prob. 2TYKCh. 47.3 - Prob. 3TYKCh. 47 - Prob. 1TY
Ch. 47 - Prob. 2TYCh. 47 - The idea that humans have an intimate love of...Ch. 47 - Prob. 4TYCh. 47 - Prob. 5TYCh. 47 - Prob. 6TYCh. 47 - Prob. 7TYCh. 47 - Prob. 8TYCh. 47 - Prob. 9TYCh. 47 - The American buffalo, Bison bison, is considered a...Ch. 47 - Prob. 1CCQCh. 47 - Prob. 2CCQCh. 47 - Prob. 3CCQCh. 47 - Prob. 1CBQCh. 47 - Prob. 2CBQ
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- How does protecting the biodiversity of an area increases the survival of a species’ population? Use the principles of threats to biodiversity (e.g. overexploitation, habitat loss, invasive species, etc.), species dominance or evenness, and genetics of the species (e.g. inbreeding, mutations, founder effect bottlenecks, etc.). Use a Philippine endemic species as an example in your answer.arrow_forwardWhat type of biodiversity is depicted by the pictures below? a. Species diversity b. Genetic diversity c. Ecological diversity d. Ecosystem diversityarrow_forward4. Species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The presence of different organisms in an area shows diversity of life. What type of diversity when then is a variety of organism inhabiting the area? * A. Ecosystem B. Genetic C. Species D. Populationarrow_forward
- Another ecologist reported a diversity index value of 1.511 in a different community nearby the one you studied. This community is _ diverse than the one you calculated. Please see the attached image to get a better grasp of the question. How to Calculate Biodiversity and Ecology College Biology 2 Advanced Concepts Background Information In the Shannon index, p is the proportion (n/N) of individuals of one particular species found (n) divided by the total number of individuals found (N), ln is the natural log, Σ is the sum of the calculations, and s is the number of species... Species Evenness Species evenness takes into account the number of species and the relative abundance of species in a community. Several indices have been proposed. Two of the commonly used measures of evenness are the Shannon index (H) and the Simpson index (D). Question 2: What is the Shannon diversity index value for this community? What is the species evenness for this community?arrow_forwardTests on wild cheetahs have shown that there is low genetic diversity among individuals. Wildlife biologists and conservationists are worried about what this means for the survival of this species. Why is low genetic variability a big problem when it comes to a species survival in a changing habitat?arrow_forwardThe founder effect is related to genetic drift, and the bottleneck effect is related to genetic drift. assortative mating. mutation. selection.arrow_forward
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- A principle of biology is that biology affects our society. What is the value of increased biodiversity for human society?arrow_forwardThe Grants have studied finches on the Galapagos Islabds for 40+ years. During times of drought there is less green/flowering vegetation available as a good source for the finches. This leaves only the hard seeds. The grants have found that during drought, finches with larger beaks survive at a higher rate because they can access food source. This would be an example of ____ A.Selective pressure B. good genes hypothesis C. handicap principle D. population variationarrow_forwardThe Grants have studied finches on the Galapagos Islands for 40+ years. During times of drought, there is less green/flowering vegetation available as a food source for the finches. This leaves only the hard, thorny seeds. The Grants have found that during drought, finches with larger beaks survive at a higher rate because they can access the food source. This would be an example of __________. a. good genes hypothesis b. selective pressure c. handicap principle d. population variationarrow_forward
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