B. Excretory system. Think of it helping things to EXIT your body
Answer:
The southern hemisphere is tilted towards the Sun at the point of the year.
The answer would be ''Y-Chromosomes Analysis''
Answer:
contraction and relaxation of the heart
Explanation:
Answer:
Explanation:A mechanical wave requires an initial energy input. Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one.