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Serjik [45]
3 years ago
11

Which of the following is NOT needed for DNA replication?

Biology
1 answer:
amm18123 years ago
4 0

Answer:

Ribosomes

Explanation:

Ribosomes are used in cells for growth and repair they are held in the cytoplasm of the cell not the nucleus therefore they are never in contact with dna

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When California recently (June 2015) passed a law banning the personal belief exemption of routine childhood vaccines Jim Carrey
NemiM [27]

Answer:

Yes, there is no convincing scientific evidence that thimerosal causes harm by the low doses of thimerosal in vaccines, except for minor reactions like redness and swelling at the injection site

Explanation:

Thimerosal has been used safely as a vaccine additive, added to some vaccines to prevent germs like bacteria and fungi from growing in them dated since early 1930s. Though, Thimerosal contains mercury but the type of mercury doesn’t stays in the body, and is unlikely to make human fall sick.

Most people doesn't have any allergic reaction to it except for redness and swelling at the injection site as early mentioned and this is considered irrelevant when compared to effect of vaccine when contaminated by germ which could cause serious illness or death.

4 0
3 years ago
Your heart has four valves. Normally, these valves open to let blood flow through your heart, and then shut to keep it from flow
Ulleksa [173]

Regurgitation influences the flow of blood by mixing the oxygen-poor blood with the oxygen-rich blood. Due to this, the heart has to pump more to oxygenate the entire body, leading to the rapid, and fluttering heartbeat. The tissues get oxygenated but regurgitation could be fatal, as the heart cannot function overtime forever.  

Valve prolapse influences the flow of blood when the flow of blood backs up. This leads to an irregular or racing heartbeat. Even at certain occasions, the blood can flow back to the lungs. However, there is not a huge influence in the oxygenation of the body tissues.  

Stenosis makes the ventricles to pump overtime to get enough blood through, and in the process, the ventricles thicken. This functions for a while, however, it will result in heart failure as the heart cannot do it for entire life. The tissues are oxygenated, but it will be an issue due to overtime.  


7 0
3 years ago
Fossils show how the complexity of living organisms has changed over time. Gerobatrachus hottoni was a unique organism that live
lara31 [8.8K]

The correct answer is transitional.  

Gerobatrachus refers to an extinct genus of amphibamid temnospondyl, which thrived in the initial Permian, that is, about 290 mya, in the region, which is now known as Baylor County, Texas. The transitional form of fossils are those that demonstrate the intermediate form between the two distinct living species, it could be in a form of an ancestor and its descendants. It is considered that the frogs and salamanders have evolved from a common ancestor of primitive amphibian tetrapod subclass known as Temnospondyli.  


4 0
3 years ago
What is the mystery element? is this a metal, nonmetal, or metalloid?
kiruha [24]

This is a metal!

I believe this is a metal because non-metal can be cut out instantly as this element shown has a metallic luster. Metalloids can be removed as they are worse at the conduction of electricty than metals, and all of the other properties listed are properties held by metals.

(Yes this is just my old answer but only because it is really the same reasoning)

Hope this helps, if not, comment below please!!!

:L

8 0
3 years ago
What is the function of the optic chiasm?
erastovalidia [21]

It helps with the optic nerve, if you give me options i can help answer. Sorry if I didnt help :)

7 0
3 years ago
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