When they were first sold, aerosol insecticides were highly effective in killing flies and mosquitoes. now, several decades later, a much smaller proportion of these insects die when sprayed. the reason fewer insects die when they are sprayed is that

a. the original spraying has caused a permanent mutation, giving the insects genetic resistance to the spray.
b. mosquitoes are deliberately adapting themselves to this man-made change in the environment
c. mosquitoes that survive spraying develop an immunity to the insecticided.
c. many mosquitoes today are descendants of mosquitoes with insecticide-resistant characteristicse.
d. none of the listed responses is correct.

Which type of respiration takes place when there is no oxygen present

He did not infringe upon the policy making powers that he felt the constitution gave congress. but the determination of foreign policy became preponderantly a presidential concern. when the french revolution led to a major war between france and england, washington refused to accept entirely the recommendations of either his secretary of state thomas jefferson, who was pro-french, or his secretary of the treasury alexander hamilton, who was pro-british. rather, he insisted upon a neutral course until the united states could grow stronger. which provides the best objective summary of this excerpt? president washington made a good choice when he decided not to accept the recommendations of his advisors and instead insisted that the united states stay neutral during the war between france and england as president, washington believed that the united states should remain neutral in foreign policy even though he had advisors who recommended that he take sides during the war between france and england. washington did not make policy decisions during his presidency because he did not want to interfere with the policy-making powers that the constitution gave congress. washington refused to accept entirely the recommendations of either his secretary of state thomas jefferson, who was pro-french, or his secretary of the treasury alexander hamilton, who was pro-britis

The picture shows a location in india that is very dry and arid. notice the tall mountains in the background; you can find high amounts of vegetation on the other side of the mountains. which statement is most likely true for this area?