Answer:
Some animals use echos for communication, Wolves listen to each others howls with echos to find each other if they ever get seperated.
Explanation:
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Answer:
causes a substance to change from a liquid to a solid.
Explanation:
The answer is A.<span>Boron and carbon are likely together in one period because they have very close atomic numbers, while gallium and germanium are likely together in another period because they have very close atomic numbers.
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Answer:
Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell. ... It also provides a track-like system that directs the movement of organelles and other substances within cells. Endoplasmic reticulum (ER) This organelle helps process molecules created by the cell
Explanation:
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