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nignag [31]
3 years ago
6

The ultimate purpose of the digestive system is to:

Biology
1 answer:
kenny6666 [7]3 years ago
5 0
Transform nutrients so that they can be absorbed into the blood.
• your digestive system breaks down the food so that your body can receive the necessary nutrients required to maintain homeostasis in your body and whatnot
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Transcription chain elongation is thought to generate ____ supercoils ahead of the transcription bubble and _____ supercoils beh
frosja888 [35]

Answer:

a. positive; negative

Explanation:

Transcription is the process of forming an RNA molecule from a DNA template molecule. In this process, the strands of DNA separate and one serves as a template for RNA, while the other is inactive. At the end of the transcript, the tapes that have been split back together again.

The transcription process is divided into three steps: initiation, stretching and termination

During the stretching phase, transcription chain elongation occurs. In this phase the enzyme called RNA polymerase starts to move through the DNA molecule, unwinding its helix and producing an increasingly lengthened RNA molecule. The already transcribed DNA is rewound almost immediately, recomposing its double helix. This process is called the elongation phase.

During this process, it is believed that positive supercoils  are generated ahead of the transcription bubble and  and the negative supercoils behind it.

6 0
2 years ago
22 (101 HC) Why have none of the competing hypotheses about the origin of life on Earth been developed into a scientific theory?
Margaret [11]
Because you cannot test it or observe it.

A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment. 
5 0
3 years ago
What is a lens?
Nimfa-mama [501]

Answer:

A or B

Explanation:

To be honest both are accurate.

5 0
2 years ago
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How does comparative anatomy support the idea that organisms share ancestors?
REY [17]
When you compare different organisms and see that they have the same or similar anatomic traits, it's reasonable to assume the organisms share a common ancestor where they would have gotten trait from. (evolution)
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3 years ago
how is it possible mohave thousands of different proteins when there are only 20 different amino acids
TEA [102]
Hi there!

Although there are only 20 amino acids, these amino acids can combine into an innumerable amount of combinations to form different and unique proteins. 

<span>In case that doesn't make sense to you, I'll provide you with an analogy. You could be provided with 20 different LEGO bricks to work with. While there may only be 20 bricks, these bricks can combine into a vast amount of different formations, structures, etc. Amino Acids work in the same way.</span>
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