Petra walks into a brightly lit psychology lab to participate in an experiment involving the ability to perceive the colors of the rainbow. which photoreceptors will be most useful during this experiment?

 The correct answer is :  cones

Explanation:  At the bottom of the eye there are millions of cells like cones and rods that collect the different elements of the spectrum of sunlight and change them into electrical impulses that then send them to the brain through the optic nerves. The cones are concentrated near the retina. The cones are responsible for the color vision.

the answer is the petition of right.

explanation:

offer to of right, real demand of attesting a benefit against the english crown, the most remarkable point of reference being the petition of right of 1628, which parliament sent to charles i fussing of a movement of oversteps of law. the term also implied the framework (invalidated in 1947) by which a subject could sue the crown.   taking a gander at the frameworks used by maria amidu to make a standard in 2015 commending the 1628 petition of right, which was sent to charles i by the english parliament. at uniquely based law the crown, or the sovereign in his official cutoff, couldn't be sued in the ruler's courts. since the ruler was, really, the superior ace of those courts, coordinating value in them between his subjects, he was not subject to their ward. therefore it transformed into a preparation, at whatever point a subject's certified or individual property had come into the responsibility for ruler or his specialists without legitimate perfect, for the subject to engage the master in chamber for its recovery.