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Answer:
D) Water dissolves some molecules while causing the aggregation of others because of hydrophobic and hydrophilic interactions.
Explanation:
Sugars tend to dissolve, while lipids aggregate out because sugar has hydrophilic (water loving) interaction with water and on the other hand lipids have hydrophobic (fear of water) interaction with water. Water is a polar solvent and only polar solute dissolve in it due to phenomenon of like dissolve like, while lipids does not dissolve in it because lipid is non-polar in nature. In this case, sugar is hydrophilic while lipids is hydrophobic.
In predation, one population is the resource of the other. One can conceptualize competition as occurring horizonatally on the same resource level, while predation takes place vertically between different resource levels. Competition and predation comprise environmental pressures on the interacting populations.
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