Phospholipids are the substance/structure that is the building block of the cell membrane. Without phospholipids, we wouldn't even have a cell membrane and wouldn't really have any way how to shield and guard or control th epassage of substances across the cell surface. The cell membrane is at the same time partially permeable; this means it will let certain ions that can be found in the intra and extracellular fluid in and out, while others will be kept from moving so freely.
They are the managed consumption of natural resources to prevent their depletion or the destruction of the environment.
The answer is d) it encloses specific structures
Answer:
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Answer:
Atp
Explanation:
This is the correct answer