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IgorC [24]
2 years ago
7

Cells are circular, hollow structures that serve as building blocks of living things. fact or opinion​

Biology
2 answers:
MariettaO [177]2 years ago
7 0

Answer:

<em><u>FACT</u></em>

Explanation:

<h3>Cells as Building Blocks</h3>

<h3>A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms</h3>
Xelga [282]2 years ago
6 0

Answer:

it is a fact

Explanation:

it is a fact because a living things can be composed of either one cell or many cells

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Answer:

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Explanation:

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Mass of oxygen  = 18g

Mass of hydrogen  = 4g

The mass of water produced is 22g according to law of conservation of mass.

The law states that " in a chemical reaction, mass is always conserved"

 The sum of the mass of product  and reactants must always be the same.  

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