Answer:
Homogenous
Explanation:
Sugar dissolves in water; it spreads around and is similarly consistent throughout a container of water.
Sand in water would be heterogenous due to sand NOT being able to dissolve in water, so they'd be on two separate layers.
The electron transport system
Answer:
b. Steriod
Explanation:
Steriods are lipophilic, fat-soluble chemicals derived from cholesterol that enter target cell by simple diffusion through the plasma membrane and bind to steriod hormone receptors in the cell.
It is important because the results would not be reliable since other variables you are not testing could have been in affect.
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