Evolution is the result of environmental pressure. If there is no environmental pressure, no stress to overcome, then there is no pressure making any particular adaptation more likely to survive than any other. How is the fact that antibiotics are everywhere and very commonly prescribed by doctors related to antibiotic resistance?

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

1. is geographic distribution

2 is increasing complexity

3 is transitional forms