The Chi-square test involves a statistical comparison between measured (observed) and predicted (expected) values. One generally determines degrees of freedom as ________
A) the number of categories being compared
B) ten minus the sum of the two categories
C) one more than the number of classes being compared
D) one less than the number of classes being compared
E) the sum of the two categories
D
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A close evolutionary relationship between annelids and mollusks is suggested by the presence of a _____ larva in both phyla as well as by molecular sequence comparisons
A. trochophore B. lophophore C. radula D. bivalve E. none of these
When a stalled replication fork undergoes fork regression the next step:
A. can be repair of the lesion because it has become double-stranded again. B. can be degradation of the displaced strands followed by branch migration and continued replication. C. can be translesion synthesis to bypass the lesion. D. can be synthesis-dependent strand annealing (SDSA). E. All of the choices given are possible outcomes.
A drowning death would be most directly due to:
a. The unavailability of glucose to feed into glycolysis. b. The accumulation of lactate in the muscle tissue due to anaerobic respiration. c. The breakdown of pyruvate into ethyl alcohol. d. The lack of oxygen to accept hydrogen. e. There is not sufficient information to determine which answer is correct.
________ is the term that describes how populations change in size
Fill in the blank(s) with correct word