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gavmur [86]
2 years ago
12

1. Minerals are naturally occurring.

Biology
2 answers:
Vlada [557]2 years ago
6 0
The first one is True minerals are naturally occurring.

The second one is False. Minerals do have a definite chemical composition.

Hope this helps:)

Ivan2 years ago
5 0

QuestionQuestionQuesQuestionnonumberno number.

1 answer -True

2 answer-False

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According to the question, lac operon, which regulates the production of enzymes will be transcribed and subsequently translated i.e. turned on when there is a substrate (lactose) that the produced enzyme will work on. However, when there is no need of the lactase enzyme or there is absence of lactose (substrate), the lac operon gene is turned off.

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