Aresearcher wants to test if juvenile hormone (similar to testosterone) is associated with aggression in paper wasps. the researcher films wasp interactions between wasp pairs in which one individual is given extra juvenile hormone. the researcher also films wasp interactions between pairs in which neither individual is given extra testosterone. filming conditions are the same for each pair and the level of aggression is recorded. what is the control in this experiment?
a. the pairs in which one individual is given extra juvenile hormone is the control.
b. the pairs in which neither individual is given extra juvenile hormone is the control.
c. there is no control; this is an observational study.
d. the similar filming conditions is the control.

What is the communication process? why isnt it possible to communicate without using all the elements in the communication process?

Suppose that xtel currently is selling at $40 per share. you buy 500 shares using $15,000 of your own money, borrowing the remainder of the purchase price from your broker. the rate on the margin loan is 8%. a. what is the percentage increase in the net worth of your brokerage account if the price of xtel immediately changes to (a) $44; (b) $40; (c) $36? (leave no cells blank - be certain to enter "0" wherever required. negative values should be indicated by a minus sign. round your answers to 2 decimal places.) b. if the maintenance margin is 25%, how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.) c. how would your answer to requirement 2 would change if you had financed the initial purchase with only $10,000 of your own money? (round your answer to 2 decimal places.) d. what is the rate of return on your margined position (assuming again that you invest $15,000 of your own money) if xtel is selling after one year at (a) $44; (b) $40; (c) $36? (negative values should be indicated by a minus sign. round your answers to 2 decimal places.) e. continue to assume that a year has passed. how low can xtel’s price fall before you get a margin call? (round your answer to 2 decimal places.)

Select the correct answer brian wants to add a chart to his dtp project. what is the best way he can do this? a draw the chart using the dtp program draw option b create the chart in a spreadsheet then import it c. use the dtp chart wizard to create the chart within the dtp d. create an image of the chart in an image editor then import the image e use html code to create a chart within the dtp program