Biology
Grade-9
Easy
Question
______ is the basic unit of a living organism.
- Reflex
- Cell
- Liquid material in cell
- None of these
Hint:
Cells are the tiny structures that make up all living organisms, including sharks, plants, cats, insects, bacteria, and you. People often say that cells are the basic building blocks of life.
The correct answer is: Cell
- Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages.
- That's because all cells are surrounded by a structure called the cell membrane which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments.
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