Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 23.1, Problem 3CC
MAKE CONNECTIONS Ø If a population stopped reproducing sexually (but still reproduced asexually), how would Its
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What type of reproductive strategy is shown in the model and what is an evolutionary disadvantage of it?
O A. Asexual reproduction; organisms that utilize this strategy have increased genetic diversity which increases their ability to adapt to
frequent changes.
B. Sexual reproduction; organisms that utilize this strategy have increased genetic diversity which increases their ability to adapt to
frequent changes.
C. Sexual reproduction; organisms that utilize this strategy lack genetic diversity which limits their ability to adapt to frequent
changes.
D. Asexual reproduction; organisms that utilize this strategy lack genetic diversity which limits their ability to adapt to frequent
changes.
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1. Is there a correlation between survival, reproduction and environment color? Explain.
2. Are there any other factors besides color important in determining survival in the simulation?
3. Why did we set the rate of reproduction at 2/survivor? What would happen if one color always had more offspring than other colors?
4. Suppose that a mutation occurs and a white, “albino” bead is born. How well would it survive in your environment?
Please answer all questions please
WRITE ABOUT A THEME: INFORMATION The continuity oflife is based on heritable information in the form of DNA. In ashort essay (100–150 words), explain how chromosome behavior during sexual reproduction in animals ensures perpetuationof parental traits in offspring and, at the same time, geneticvariation among offspring.
Chapter 23 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 23.1 - Explain why genetic Variation within a population...Ch. 23.1 - Ot all the mutations that occur in a population,...Ch. 23.1 - MAKE CONNECTIONS If a population stopped...Ch. 23.2 - A population has 700 individuals, 85 of genotype...Ch. 23.2 - The frequency of allele a is 0.45 for a population...Ch. 23.2 - WHAT IF? A locus that affects susceptibility to a...Ch. 23.3 - In what sense is natural selection more...Ch. 23.3 - Distinguish genetic draft from gene flow in terms...Ch. 23.3 - WH AT IF? Suppose two plant populations exchange...Ch. 23.4 - What is the relative fitness of a sterile mule?...
Ch. 23.4 - Explain why natural selection is the only...Ch. 23.4 - Prob. 3CCCh. 23 - Typically. most of the nucleotide variabillity...Ch. 23 - Is it circular reasoning to calculate p ond q from...Ch. 23 - Would two small, geographically isolated...Ch. 23 - How might secondary sex characteristics in males...Ch. 23 - Natural selection changes allele frequencies...Ch. 23 - Prob. 2TYUCh. 23 - Prob. 3TYUCh. 23 - There are 25 individuals in population 1, all with...Ch. 23 - Prob. 5TYUCh. 23 - EVOLUTION CONNECTION Using at least two examples,...Ch. 23 - SCIENTIFIC INQUIRY INTERPRET THE DATA Researchers...Ch. 23 - Prob. 8TYUCh. 23 - SYNTHESI2E YOUR KNOWLEDGE This kettle lake forracd...
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- 5 2 nts 3 Help Save & Exit Review the discussion of evolution and Investigating Life 1.1. Which of the following statements is/are most likely true? (Select all that apply.) 80 A Check All That Apply Moths that could smell the nectar at the bottom of the orchid saw the need for a longer tongue, so they grew one that reached the nectar and passed on the longer tongue to their offspring. Moths that could smell the nectar at the bottom of the orchid mated with females that had longer tongues so that their offspring might have a chance to reach the nectar At least one moth species has always been able to reach the nectar of the orchid. Moths with longer tongues are more likely to have access to the orchid nectar and are therefore more likely to survive to reproduction. 000 F4 Orchids with deeper nectaries are more likely to have moths rub against their pollen, and are therefore more likely to reproduce than orchids with shallow nectaries. % Saved 8 F7 DII FB F9 what does evolution ofarrow_forwardEvolution in Humans 1) explain what evolutionary mechanisms are involved in creating variation in populations 2) define homology and analogy and discuss examples of eacharrow_forwardIt is said that sexual reproduction is selectively advantageous to asexual reproduciton. Why is the case? A. Asexual reproduction produces much more genetic diveristy than sexual reproduction B. Asexual repoduction is only half as efficient as sexual repdocution in sending ones genes into the next generation C. Sexual reproduction increases genetic diversity and consequently slows the rate of evolution D. Sexual reproduction is much faster than asexual repoduction E. Sexaul reproduction produces variation among populations which can help increase fitness for certain individuals/increase selection for favorable traitarrow_forward
- 180- 170- Figure 1. For each of more than 200 human societies, the average height of the men is plotted against the average height of the women. The diagonal line shows where the points would fall if men and women were of equal height. From Rogers and Mukherjee (1992). 160- 150- 140- 140 150 160 170 180 Female stature (cm) tionry ysin.e 2. Using an evolutionary approach, explain the evolution of sexual dimorphism in height among men and women, Is this difference due to natural or sexual selection? How do know? you Male stature (cm)arrow_forwardSelect two items that biologists agree are necessary in order to consider an organism “alive.” For each, give an example of a nonliving object that otherwise fits the definition of “alive.”arrow_forwardMatch each of the following properties of life with the correct descrip Movement toward or away from something Passing DNA onto offspring 100 Organisms develop according to instructions in their genetics. Mutations in genes over time can lead to greater success in an environment. Capturing energy from the sun, or eating food. 1. Reproduction 2. Response to Stimuli 3. Growth and Development 4. Energy Processing 5. Evolutionarrow_forward
- EVOLUTION CONNECTION Explain the biological basis forassigning all human populations to a single species. Can youthink of a scenario by which a second human species couldoriginate in the future?arrow_forwardwhich of thee following statement is false 1) the antagonistic pleiotropy hypothesis is used to explain why evolving to live longer is often beneficial to oneâ s fitness 2)Ribozyme is class of molecule that is made of RNAs (thus "ribo" in its name) and amino acids (thus "zyme" in its name). 3)In human population, males are in general larger than females. This observation can be seen as an example of sexual dimorphism.arrow_forwardIn which of the following scenarios would evolution by natural selection take place? A banana tree branch is planted, producing a clone of the parent tree Microorganisms reproduce asexually, producing identical offspring Corn is genetically modified and cloned to make identical crops Penguins reproduce sexually, producing offspring that look different from one anotherarrow_forward
- If evolution requires genetic variation, can populations of asexually reproducing organisms evolve? Explain.arrow_forwardReview View Help Editing A BI U v Ev E E E E A Question 3 Females are usually the limiting sexual resource in populations. A) True B) False Question 10 options: is intraspecific variation due to environmental differences during development as opposed to genetic differences. (2 words)arrow_forwardBiology 1-Please explain the concept of coalescence (no more than three sentences) 2- Why do we say that genetic drift is not adaptive? (Answer in no more than 3 sentences).arrow_forward
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