The correct option for given statement is
D
I and II only
I. Enzymes are not consumed during a chemical reaction.
II. Enzymes are specific to particular molecules
Explanation:
Enzymes are biological molecules (typically proteins) that considerably speed up the speed of nearly all of the chemical reactions that turn up at intervals cells.They're necessary|important} always and serve a large vary of important functions within the body, like aiding in digestion and metabolism.
A fierce predator is removed from the ecosystem.
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Explanation:
The Precambrian covers almost 90% of the entire history of the Earth. It has been divided into three eras: the Hadean, the Archean and the Proterozoic. The Precambrian Era comprises all of geologic time prior to 600 million years ago.