All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates? (1 point)
O These species evolved in similar environments.
O The embryos of these species require these structures to survive.
O These species share a common ancestor.
O These species have the exact same DNA sequence.

These species share a common ancestor

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