Could be anything that can help represent the cell membrane visually
"Benzaldehyde is an organic compound consisting of a benzene ring with a formyl substituent. It is the simplest aromatic aldehyde and one of the most industrially useful. It is a colorless liquid with a characteristic almond-like odor."
https://www.britannica.com/science/benzaldehyde
https://en.wikipedia.org/wiki/Benzaldehyde
Your Achilles tendon was named after the Greek Hero that's only week spot was his tendon ... hope this helped
Answer:
1. Evaporation
2. Lengthening of a river upslope.
3. Sand and gravel
4. Storm surge
5. Adds clean water to the drinking water supply
6. cuts down on the number of open pores
7. A confined aquifer is pumped for drinking water
