"Evolution in Animals and Population of Humans" Please respond to the following:

Note: Online students, please respond to one (1) of the following three (3) bulleted items.

Consider the animals in this week's readings that are radially symmetrical (cnidarians, many adult echinoderms). Choose one (1) animal that is radially symmetrical and discuss how its lifestyle is different from that of bilaterally symmetrical animals. Illustrate how its body plan complements its lifestyle.
The age structure diagrams for two (2) hypothetical human populations are shown on Page 331 of the textbook. Describe the growth rate of each population, and discuss at least two (2) current and future social and economic problems that each is likely to face.
A subset of what are called "Neglected Tropical Diseases" (NTDs) is caused by parasitic worms. Use the Internet or the Strayer Library to research one (1) NTD that results from a parasitic worm. Describe the NTD you researched and the organism that causes it. describe how the NTD you researched relates to this lesson. Provide a rationale with your response. (In your discussion, provide the URL for the article.) 

Required minimum-1 page