Answer:
1. Food chains are only single organisms, going in a straight line, while food webs include multiple organisms at once.
2. A food web requires <em>multiple </em>food chains, to create a food web
Nerve cells, Blood cells, Reproductive cells, Skin cells
Yes you need to call another ambulance because you need to take care of someone with a broken arm , head injury (also unconscious) you would need another ambulance to check on the pregnant woman and man with cuts and scratches.
Differences in the density of water can also cause currents to form and move. Density is affected by temperature and salinity. Cold water or water with dissolved salts (higher salinity) is denser than warm water or water without dissolved salts (low or no salinity).
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