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babunello [35]
4 years ago
11

Index fossils are used for __________ dating.

Biology
1 answer:
Marat540 [252]4 years ago
5 0
Index fossils are used for relative dating.
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Explain two ways in which forecasters collect weather data and how it's used
V125BC [204]

Answer:

thermostats  

Explanation:

8 0
3 years ago
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During gene expression, the dna-to-rna step is known as , while the rna-to-protein step is known as _____.
zlopas [31]

During the process of gene expression, the DNA to RNA step is known as transcription while the RNA to protein step is known as translation.

Gene expression is a process which involves the synthesis of a functional gene product by using the information present in the genes.

Transcription is a process which involves the synthesis of a RNA from the DNA. In eukaryotic cells, the transcription occurs in the nucleus whereas in prokaryotes the transcription occurs in the cytoplasm of the cell.

Translation is the process by which the RNA is converted into a protein. The translation in prokaryotic cells occurs in the cytosol of the cell whereas in eukaryotic cells, the translation occurs in the ribosomes.

To learn more about transcription here

brainly.com/question/8926797

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4 0
2 years ago
The autonomic nervous system controls all __________ responses of the body.
Mumz [18]

A. unconscious

It's A because it controls the involuntary actions like our heart beat or breathing. The actions we aren't consistently remembering to do.  

4 0
3 years ago
When research participants engage in tasks that require the construction of this type of mental representation, they utilize par
djyliett [7]

Research participants’ uses occipital lobes when they are engage in tasks that require the construction of mental image. <span>The location of occipital lobe is in the back portion of the brain behind the parietal and temporal lobes that is primarily responsible for processing visual information. It contains the brain's visual processing system, which processes images from our eyes and links that information with images stored in memory or called visual-spatial processing. Other function includes movement and color recognition.</span>

7 0
3 years ago
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Cyanide was used for treating cancer What might be the rationale behind this treatment?
enyata [817]

Answer:

   Cyanide is considered a specific neurotoxin and is often associated with high levels of cellular calcium and inhibition of antioxidants, leading to the formation of reactive oxygen species (ROS) and consequent lipid peroxidation.  But cyanide toxicity is mainly due to the iron (Fe (III) or Fe3 +) iron binding of the mitochondrial cytochrome oxidase enzyme of the electron transport chain. This enzyme mediates the transfer of electrons to molecular oxygen . By blocking this enzyme, the cell is unable to use oxygen and uses an anaerobic metabolism reducing pyruvate to lactic acid (lactic fermentation), which results in tissue anoxia and the rapid development of lactic acidosis. There is also a change in cell metabolism as there is a depletion in energy production.  So it causes cell death. This would be the mechanism to kill cancer cells. Although, cyanide cant be use to treat cancer because it kills all the cells (leading to death) and not only the cancer cells.

 Explanation:

   Some researchers founded that cyanide poison may have the role of being a powerful cancer fighter. It believes that they can relate the enzyme to cancer by looking for antibodies that can recognize a protein found only in certain cancers. The method would produce an agent that could potentially kill cancer cells and leave undamaged tissue healthy.

 As for the deadly nature of cyanide, scientists say the amount produced by this technique iwould be sufficient only to kill the cancer target cell by a combined enzyme and antibody molecule.  And a natural enzyme produced in the human liver could detoxify any cyanide that could escape the tumor. Although, cyanide is a drug that, even if ingest a small amount, could lead to death. Some studies are going on, but until now, theres no safety of taking cyanide to treat cancer cells.

5 0
3 years ago
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