There are a number of possible methods to control an invasion of gypsy moths in a city park. Several alternatives are listed below. a ) A band of material can be placed around each tree trunk, preventing the larvae from crawling up the trunk. The larvae can be picked off by hand each day and destroyed. b )A chemical insecticide can be sprayed from an airplane. The chemical is effective and disappears rapidly, although some may run off into ponds and lakes. c) The trees can be sprayed with a liquid containing naturally occurring bacteria that feed on gypsy moths. These bacteria are believed to be harmless, but the spray is very expensive. d) No action is taken. This allows nature to take its course, which results in major changes in the area concerned. The damage can then be repaired. Write the letter of the method you would use and give an ecologically sound reason for your choice.

John lennon and paul mccartney belonged to this group

Today, the a. caesar b. bishop c. pope d. tsar still heads the roman catholic church, which is centered on rome. there is no longer a byzantine emperor, but each country has its own a. governor b. patriarch c. prefect d. council to lead the eastern orthodox church there.

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured. respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office. the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data. the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed. the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed