BIO 240 Week 2 DQ 2

Would two identical twins growing up in different neighborhood grow up differently?

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There is a fierce competition among individuals within any species, humans included, to gain access to reproductive privileges. The “fittest” – a term that signifies the largest, prettiest, and most sexually attractive members, succeed in predominantly mating and having offspring, while the less attractive ones often do not. What is the role of such sexual selection from an evolutionary standpoint?

Instead of engaging in fights over potential mates, what would be the problem of simply mating with family members, say, siblings and other relatives? Isn’t this a more efficient way to spread genes, without the added peril of having to find potential mates, which could be a dangerous, strenuous, and uncertain activity? Why not take that and “run?”Examine the graphs in the Lab Book, and describe any trends you observe among kelp, purple sea urchin, and sea otter populations.
What happened to all three populations when catastrophe struck the sea otters? Which populations were wiped out, and in what order?
Why do you think the removal of the otters caused the other two populations to crash as well?
Examine the graphs in the Lab Book. What happened to the populations’ growth patterns when 100 individuals of each species were reintroduced to the habitat?
What would have happened if you had only reintroduced the kelp and the urchin? Explain.
What if you had only reintroduced five individuals of each species? Would that have worked to restore the populations? Explain your hypothesis.
Describe the results of the simulation. Was your hypothesis supported?

Related TutorialsWhat three taxa appear in the main window when you first enter the Systematics Lab Room? At what level of classification are these three taxa?
List one trait for each of these three taxa that distinguishes it from the others.
Which of these organisms are included in Eukarya? Select all that apply.
What groups did you click through to get to classes Mammalia and Reptilia?
Which two of the following species are more closely related: red-eared slider, vampire bat, American alligator?
What is the common name of the species you have arrived at?
What is the name and level of the taxon where the two species’ lineages diverge?