<span>The filament of a flagellum rotates in a kind of sinusoidal motion, resembling a ship’s propeller or a corkscrew. Since the flagellum pushes instead of pulls, it is located at the rear of the microorganism. If there is more than one, they may act as a bundle. The direction of rotation determines the path of the microorganism. Flagella also serve as sensors, particularly for the detection of moisture.</span>
When a candle burns, energy is released in the form of light and heat.
Candles are used to provide light because when they burn, the energy which is released takes the form of light. Similarly, because fire is involved in the process, heat is given off as well.
Answer:the cell membrane provides protection for a cell
Explanation: that some molecules can diffuse across the lipid bilayer but others no
10 - the density is less than air.
11 - higher-viscosity. can't explain - sorry
