Karyogamy and meiosis take place in elongated, saclike cells in which of the following groups of fungi?
A. ascomycetes
B. basidiomycetes
C. chytrids
D. glomeromycetes
E. zygomycetes
A
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Statistical analysis of genetic variation within and among human populations—including those we identify as different races—reveal:
A. more genetic variation between groups than we see within groups. B. more genetic variation within groups than we see between groups. C. no clear pattern of genetic variationâ€"in some regions, we would see more variation within than among groups, and in some regions we would see the opposite. D. a correlation between the amount of genetic variation between groups and the length of time the groups have been isolated from one another. E. None of the above.
True or false: Despite being an osmoconformer, a shark still spends energy to regulate the concentrations of individual ions such as potassium, chloride, and sodium
A. true B. false
Two weeks following a hiking trip in which several ticks were noticed and numerous mosquitoes were biting, a 25-year-old man notices a rash shaped like a red ring on the back of his thigh. He was not concerned because he had no other symptoms. Three months later he noticed significant pain in his elbows and his knees. What is the most likely cause of his illness?
A. Ehrlichiosis B. Rocky Mountain Spotted Fever C. West Nile encephalitis D. Lyme disease
Estimating a probit or logit model via maximum likelihood involves all of the following except for what?
A. Choosing a determining function B. Finding the coefficient estimates that maximize the likelihood function C. Characterizing a likelihood function given choices about the distribution of observables D. Setting up the moment conditions