Which of the following is(are) characteristic of
acute inflammation?
a. warmth
b. swelling
c. redness
d. pain
e. all of these
E
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"Any difference among individuals that is sufficiently common such that it would almost certainly be present in a group of 50 individuals chosen at random" is the definition of a(n):
A. allele. B. genotype. C. polymorphism. D. restriction site. E. phenotype.
The respiratory surface of an earthworm is located in the _____
a. lungs b. gills c. skin d. gastrovascular cavities e. trachea
______________ is a negative emotional state generally associated with a blocked goal.
A. Frustration B. A hassle C. Stress D. Conflict
Consider the model for the equilibrium number of species in a mainland (continental) region, as illustrated in Figure 20.23. What does this model say about the rate of speciation?
A) The rate of speciation decreases as a linear function of the number of species. B) The rate of speciation increases as a linear function of the number of species. C) The rate of speciation increases as a function of the number of species, but the rate of increase decelerates as the number of species becomes large.