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Lena [83]
3 years ago
15

When the body becomes dehydrated, a chemical signal is sent that causes nephrons in the kidneys to absorb more water and excrete

more salts. this is an example of a _____?
Biology
2 answers:
zhuklara [117]3 years ago
8 0
I believe the answer you are seeking is feedback loop
inessss [21]3 years ago
7 0

Answer:

Negative feedback

Explanation:

Dehydration stimulates the posterior pituitary gland to release vasopressin hormone in blood which in turn makes kidneys to reabsorb more water. vasopressin prevents water loss by stimulating the formation of concentrated urine and release of more salts from the body. Since the hormone is released to bring about change in the hydration level of the body (to restore the controlled condition again by reversing the change), it is an example of a negative feedback system.

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Answer:

6

Explanation:

10,000 people divided by 1700 is about 5.8

round 5.8 to a whole number at you will expect 6 people to have cystic fibrosis in a population of 10,000 people

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Classify each RNA post-transcription processing event according to whether it occurs in prokaryotes or eukaryotes.
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'RNA is transcribed and translated in the cytoplasm', 'transcription produces an mRNA ready for translation' and 'RNA is proofread for errors' occur in prokaryotes, whereas '5′ cap, 3' poly-(A) tail and RNA splicing' occur in eukaryotes.

The prokaryotic cells (e.g., bacterial cells) do not contain cell nuclei, thereby the messenger RNA (mRNA) must be transcribed and translated in the cytoplasm.

During prokaryotic transcription, the RNA transcript is proofread for errors. In bacteria, DNA polymerases proofread the transcript by using their 3’ → 5’ exonuclease activity.

In eukaryotic cells, RNA processing consists of several mechanisms:

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  • A 3' poly-Adenine (A) tail is added to the 3' end of the pre-mRNA.

  • Both the 5′ cap and 3' poly-(A) tail protect the RNA transcript from its degradation by exonucleases.

  • Eukaryotic RNA splicing consists of the removal of non-coding regions called 'introns' and subsequent splicing of the protein-coding regions called 'exons'.

Learn more in:

brainly.com/question/24415778

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All earth’s water is in a system called
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It is the total water in Earth.
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