What are the biological catalyst ?

The biological catalysts are enzymes.

Explanation:

Enzymes are proteins that function as catalysts that speed up reactions by lowering the activation energy.  The best way to define an enzyme is that it's a biological catalyst that accelerates a chemical reaction without altering its equilibrium.

segmentation=endoskeleton=backbone=coelom=tissues

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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