Monday, November 21, 2011

Why is bacteria alive?

Bacteria consumes matter for energy.


Bacteria reproduces.


Bacteria creates waste.


Bacteria has DNA.





That last one is the clincher!

Why is bacteria alive?
Bacteria have the characteristics of living things, such as:


.. made of cells


.. use energy


.. exchange gases


and so on
Reply:Because they can react to stimuli.
Reply:The are composed of cells with cell membranes, they transform energy for metabolic activity, they contain DNA, and they reproduce. These are the criteria for living things, and bacteria do all the above.


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