The concentration of glucose in active regions of the brain underlies the usefulness of a(n): a. mrib. brain lesionc. eegd. pet scane. hemispherectomy

The answer is D.

Explanation:

Out of the options given in the question, the best one for this example is the Positron Emission Tomography (PET Scane) because it is stated that the active regions of the brain contain high concentration of glucose.

The reason is that a substance similar to glucose is used as an indicator in PET scans to show the part of the body where the inspection is required by emitting gamma rays.

I hope this answer helps.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave