Litter taxes do not provide a disincentive to litter. Since they are passed on to consumers in the price of goods, citizens don't know they are paying or why. Most litter taxes are collected three times: once from the manufacturer, again from the wholesaler, and once from the retailer.
User: Which factors are common to both gradualism and punctuated equilibrium? A. Migration, genetic drift, speciation, and natural selection B. Allele change and microevolution C. Slow adaptation, stasis, and expansion Weegy: A.) GradualismExpert answered|patmarone|Points 4979|.
Conclusion: speciation is likely to have happened in very different modes. The evidence also says that speciation events occur quickly in relation to the average life of a species. This scenario for punctuated equilibrium is not always true, however (see below), so we have to ask how often it is true.