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igomit [66]
3 years ago
6

1. What does Kes73 have that makes it interesting to astronomers?

Biology
1 answer:
nata0808 [166]3 years ago
8 0

The thing that makes kes73 interesting to astronomers is ; ( A ) A second star.

kes73 is believed by astronomers to have come from the explosion of dying stars in the supernova. The gases from the dying stars explode and scatter across forming a colorful cloud known as kes73.

At the center of the colorful cloud formed from the gases of the dying stars is a second star ( magnetar ) which is the most powerful star in the galaxy due to its  magnetic force.

Hence we can conclude that the thing that makes kes73 interesting to astronomers is the presence of a second star

Learn more : brainly.com/question/24245572

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A train rumbles along the tracks at high speed.
Nutka1998 [239]

Answer:

Mechanical --> Thermal

Explanation:

4 0
3 years ago
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Which of the following is an example of primary waste prevention?
zmey [24]

The correct option is B, that is, A FAMILY DONATES USED CLOTHING TO A SECOND HAND STORE.

Waste prevention has to do with the process and practice of reducing the amount of wastes products in order to produce a more sustainable environment. Waste prevention can also be called recycling. There are three types of waste prevention, these are primary, secondary and tertiary waste prevention / recycling.

Primary waste prevention refers to a situation in which the material to be disposed is not changed in anyway, before been reused. Such material can be given to friend or donated to a charity organization. The material is always used for the same purpose as the original use.  

Secondary waste prevention involves some kind of modifications while tertiary waste prevention usually involves the use of chemicals and heat.  

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Why might using retroviral vectors for gene therapy increase the patient's risk of developing cancer? a. Retroviral vectors may
Svetllana [295]

The use of retroviral therapies can increase the patient's risk of developing cancer because they may integrate recombinant DNA into the genome in ways that may misregulate the expression of genes. Therefore the correct option is D.

<h3>What is retroviral therapy? </h3>

Retroviral therapy is an HIV treatment where medicines are taken as prescribed by a healthcare professional. This treatment reduces the amount of HIV in an HIV-infected person.

HIV does not have a cure but antiretroviral therapy can reduce the risk of potential health issues caused by HIV.

This treatment can help to control the virus in an HIV-infected person within 6 months. The treatment for HIV cannot prevent the transmission of other sexually transmitted diseases.

Therefore the correct option is D.

Read more about retroviral therapy, here

brainly.com/question/14512889

#SPJ4

7 0
2 years ago
In the history of Earth and the evolution of cells, aerobic cells appeared first and anaerobic cells appeared later.
Andreas93 [3]

Answer:

False

Explanation:

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Anaerobic cells appeared first, then photosynthesis appeared filling the atmosphere with oxygen and the aerobic organism develop cellular respiration to obtain energy, a process more efficient than anaerobic respiration.

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Explain how archeologist use the fossil record to reconstruct human behavior.
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The discover things from the past 
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