Different sounds with the same pitch still sound different because they all have different distribution of frequencies. But this happens because of timbre and every instrument has its own timbre.
Answer:
Waning is the opposite, or decreasing after a full moon, and is always illuminated on the left. Then, there is a waxing or waning Gibbous moon, which means more than half of the moon is illuminated. Waxing means to increase/get bigger, and waning means to decrease/get smaller.
Muscles can only produce a force as they relax
Water molecules ,some ions ,non polar compounds and glucose can pass through a cell membrane
The name for the protective structure that forms around an embryo is called Placenta
