A protein disk that attach two chromatids to each other in a chromosomes is called a

A protein disk that attach two chromatids to each other in chromosome is called CENTROMERE.

Explanation: it is the attaching point for two chromatids. centromere is responsible for guiding the movement of chromosome.

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

b) the inside picture would look at a very high temperature in a very low ph