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VMariaS [17]
2 years ago
9

The bacterium E. coli can use carbon sources other than glucose for

Biology
1 answer:
4vir4ik [10]2 years ago
6 0

Answer: D.) This gene sequence ensures transcription of arabinose genes only

when arabinose is available, saving the cell from expending energy

unnecessarily

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vredina [299]
I believe it would be c not exactly sure tho
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3 years ago
The part of an enzyme molecule where a substrate molecule attaches
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This part of the enzyme is known as the active site. Enzymes are organic molecules that catalyze certain chemical reactions in the body. A catalyst is any chemical that speeds up another reaction without being used up in the reaction itself. This means that at the end of the reaction the enzyme is able to operate on other molecules in another reaction.
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3 years ago
Place the following materials in the order in which they are likely to fossilize. Begin with the material that is most likely to
marusya05 [52]

Answer: correct order--->

1)mammal teeth

2.)bones of an adult mammal quickly buried

3.) bones of an adult mammal left on the surface

4.)soft body parts of any animals

Explanation:

Fossilization is the ability of an organism to be preserved and remain unaltered for a very long time. Through research , it has been found out that Harder  parts of the body tend to remain preserved for a long time  because they  naturally have minerals deposited in them and may only be reduced,  but the softer part or tissues do not get preserved for a long time because being made up of polymer can be disintegrated easily by natural biological and physical processes.

The order of which material will likely fossilize is

1.)mammal teeth

2.)bones of an adult mammal quickly buried

3.) bones of an adult mammal left on the surface

4.)soft body parts of any animals

Reason,

--Teeth and bones biologically contain calcium but the teeth is more tougher and durable than the bone, Even when a  body is decomposed, the teeth most times are not  affected at all.

Bones of an adult mammal left on the surface will decompose faster than the one buried because of the biological (natural decomposing ) and physical processes(temperature, wind, sunglight, rainfall ) which will both act on it at the same time because of its exposure.

- soft body parts of any animals will decompose fastest as bacteria will feed on it immediately since it lacks minerals that can elongate preservation.

5 0
3 years ago
Use what you have read to summarize Jackie Robinson’s story in two or three sentences.
Ilia_Sergeevich [38]

Answer:

Jackie Robinson’s story is the story of struggle, motivation and courage.

Explanation:

Jackie Robinson is base ball player in the baseball team of America. He was the first African who played in the American team. At that time racial superiority at its peak due to which their teammates hurts him with words and with physical action but he did not lose his temper and focus on his game which make him a hero in his team. He was the name of struggle, motivation and courage. From his story, many people inspired and make their life better.

4 0
3 years ago
Read 2 more answers
Explain the role of RNA polymerase in mRNA sythesis
nlexa [21]
It polymerizes RNA by reading on the strands of DNA
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3 years ago
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