Phospholipids are a class of lipids that are a major component of all cell membranes. They can form lipid bilayers because of their amphiphilic characteristic.////////
Abiotic is contain nonliving or abiotic parts. the very bottom one is biome. this is made up of Community. the very top one is ecosystem. and the last one is population. heres your answers.
Answer:
The officer that allows people in and out of the crime scene.
Explanation:
The cell membrane chooses what comes in and out of the cell, therefore the officer would be most similar to the job of the cell membrane.