Answer:
Humans cannot occupy the lowest levels.
Explanation:
The decrease is sunlight would affect the plant population because plants use sunlight as energy witch help them live and grow and without plants some animals do not have food to survive the winter
Simple sugar dehydration–fragmentation products, such as derivatives of furans, pyrones, cyclopentenes, carbonyl compounds, or acids
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Moistens tissues especially those that belong to the eye, the nose and mouth.
Water in the body also regulates body temperature.
It transports oxygen and nutrients to the cells.
It also helps to prevent constipation.