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Darina [25.2K]
3 years ago
8

What does butterflies in the stomach mean reddit?

Biology
1 answer:
nadezda [96]3 years ago
4 0
It mean getting really nervous as a figure of speech.
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I know you only need two, but here:

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Define excretion and list the ecretory product of mammals and indicate where each product is formed​
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Lac (lactose) operon in a type of bacterial operon, which shows a cluster of genes that are regulated by a single promoter. It is composed of an operator, promoter, a terminator, and three structural genes (lacA, lacY, and lacZ), which are responsible for the transport and breakdown of lactose.

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Thus, the correct answer to be fill in first blank is 'inducible' and in second blank is 'lactose.'

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3 years ago
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