Describe how the Doppler effect explains why a siren has a lower pitch as a fire engine moves away from you.

sex cells are usually half's then they find another half and make a fertilize egg

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

answer; the code in musculoskeletal system subsection is associated with deep tissue possibly to the bone;