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Alex Ar [27]
4 years ago
6

I dont understand the using your knowledge question :/

Biology
1 answer:
Dahasolnce [82]4 years ago
6 0

Answer:

There are two types of cell membranes. Either open or closed. Open is when other particles can get in or out. Closed is the opposite.

I hope that helps!

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Survival of at least a few members of a population
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Answer:  Each indivdual has there own genes so the each will have different traits.

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There are two opposing processes that occur in a solution in contact with undissolved solute. these are dissolving and ________.
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Crystallization

This is a technique commonly done by chemists to purify compounds. During crystallization, an impure,solid compound is dissolved with a hot solvent. In the container the impurities and the needed compound move freely. When the solution cools down, the solvent can cannot hold all the solutes. Each solute will form a crystal. Therefore each crystal is made of only one molecule. Once it cools down if will be placed in a cold bath to complete the crystallization.

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3 years ago
Why do you think species remain in a stage of stasis?
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3 years ago
The lac operon controls the transcription of a group of genes involved in metabolizing lactose in E. coli. A group of scientists
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Answer:

The correct answer would be - medium with lactose present and glucose absent.

Explanation:

There are genes present in lac operon that takes part in the lactose metabolism. These genes expressed only if a medium has lactose in absence of glucose.

In the absence of glucose and lactose is present, due to inducer the lac repressor is removed from the operator. This leads to the binding of CAMP to DNA as the CAMP levels are high. It helps in high transcription levels b binding RNA polymerase to promotor.

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