Describe how waves behave when they interact with a barrier or boundary.

It travels through the more dense medium until it reaches the boundary with a less dense medium. MIDDLE: At the boundary, both reflection and transmission occur. ... The reflected pulse becomes inverted when a wave in a less dense rope is heading towards a boundary with a more dense rope.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

the correct answer is sex-linked recessive.

i just took the test