Some species of sharks are on the verge of extinction because of shark finning. Washington, California, Guam, and Hawai'i prohibit selling, trading, and possessing shark fins. Do you believe sharks should be protected? Should the United States and other countries support this ban? Why or why not?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.