The older adult has a greater risk of dehydration because of

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Explanation:

As the body ages, the amount of water in it decreases, and this is one of the main reasons elderly adults are at a higher risk for dehydration. Whereas younger people can afford to lose more water, adults over 60 can lose the same amount and develop dehydration faster.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

the animal that would be cutest if scaled down to the size of a cat? elephant