Which of the following is true about multicellular organisms' cells? a They are all identical so the organism doesn't reject them b They are specialized so they can carry out unique functions. c They are all identical so the organism is able to perform life functions d They are specialized so they do not infect other organisms in the area.

they are all specialised so they do not infect other organisms in the area.

what's the question ?

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