5. If a mosquito feeds on a bird that is infected with the West Nile Virus and then feeds on a human being who then contracts the virus, what role is the mosquito playing in the infection of the person? a. The host b. The parasite C. The pathogen d. The symbiont e. The vector​

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?