If an Individual with a Marginal Tax Rate of 15

question 21

Multiple Choice

If an individual with a marginal tax rate of 15% has a long-term capital gain,it is taxed at

• A)0%.
• B)20%.
• C)10%.
• D)15%.

Describe the impact of genetic and ecological factors on speciation.

Explain how polyploidy contributes to speciation in plants.

Distinguish between allopatric, sympatric, and parapatric speciation.

Interpret the relationship between dispersal abilities and speciation rates.