Answer:
Phospholipids are molecules that compose the main structure of a cell membrane in eukaryotes. The role of phospholipids in a cell membrane is to determine which chemicals can enter and exit a cell.
Explanation:
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Answer:
D
Explanation:
because air is made up of nitrogen,carbon dioxide, Argon and oxygen
Answer:
Atoms of all elements—except for most atoms of hydrogen—have neutrons in their nucleus. Unlike protons and electrons, which are electrically charged, neutrons have no charge—they are electrically neutral
I think it's the Pancreas