The phospholipid bilayer is a universal component of all cell membranes. Each phospholipid molecule has a hydrophobic(water repelling) and a hydrophilic( attracted to water) end. This allows the phospholipids to arrange themselves in a way that makes a cell membrane not able to dissolve in water. The bilayer is also semi-permeable which allows only certain molecules to enter the cell.
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It is what makes plant stems, leaves, and branches so strong.
The food chain is a system in which food is connected with the ecosystem. Ex:composers, producers, decomposers,etc.
When the cell engulfs large fragments of matter, it is called phagocytosis. The correct option among all the options that are given in the question is the fourth option or the last option. It is basically a process through which certain living cells by the name of phagocytes engulf other cells or particles. I hope it helps you.
C.all mammal descended from a common ancestor.
