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bekas [8.4K]
3 years ago
15

Why are functional MRIs useful to doctors?

Biology
2 answers:
emmainna [20.7K]3 years ago
8 0
It is "c. They show which parts of the brain are involved in specific activities<span>." i just took the test and got it right.</span>
evablogger [386]3 years ago
4 0

The correct answer is (c) They show which part of the brain are involved in specific activities.

The functional  magnetic resonance imaging is used to measure the activity of brain by the detecting the change in the blood flow. This is done because the cerebral blood flow is associated with the neuronal activation. The functional area of brain has a higher blood flow that can be observed in functional MRI. The commercial application of functional magnetic resonance imaging is used in lie detectors. This technique is also used in research world and in some clinical trails. Physicians use this technique to see how risky a brain surgery can be. It is also used to learn how a normal, diseased, or injured brain functions.




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Which describes the moth population after the industrial Revolution?
hjlf
I am not 100% sure but I believe that because of increased manufacturing, the air got very polluted and this made many trees darker, like birch. So moths are usually lighter in color so many couldn’t really hide among trees and they were eaten. After some time, many moths mutated and also became darker to blend in when they were on trees to prevent being eaten by predators. In conclusion, the population decreased.
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4 0
3 years ago
A student used poster board to construct this model of DNA.Which statement describes this model of DNA?
pantera1 [17]

Answer:

The model is inaccurate because the base pairs are incorrect.

Explanation:

The model of DNA that the student made was:

G-G

A-A

T-T

C-C

G-G

A-A

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C-C

The model is pairing the bases incorrectly since guanine (G) forms a base pair with cytosine (C) and adenine (A) with thymine (T). In other words, the bases do not pair with the same type.

The DNA strands, which have deoxyribose, phosphate groups, and different bases, are together thanks to hydrogen bonds between the pairs. The pair G-C has three hydrogen bonds, while the pair A-T has two hydrogen bonds.

8 0
2 years ago
Pls help if u know the answer
pashok25 [27]

Answer:

runoff

Explanation:

3 0
2 years ago
Write a paragraph or two below to explain why there is a little change in the pH of battery acid when it is diluted with water.
dalvyx [7]

Answer:

Explanation:

The acid is becoming less acidic. Similarly, when an alkali is diluted with water the concentration of OH - ions decreases. This causes the pH of the alkali to fall towards 7, making the solution less alkaline as more water is added.

5 0
3 years ago
Which statement is true about nuclear decay
Readme [11.4K]

Answer:

Nuclear decay rates are constant

Explanation:

Spontaneous decay of unstable nuclei is a process of a statistical nature, it is not possible to predict with certainty when an individual radioactive nucleus will decay, nor can the decay process be influenced in any way.

Therefore, the half-life of radionuclides (specific for each radionuclide) is defined as the time period in which half of the initial number of radioactive nuclei decays.

The unit of measurement for the radioactivity of the material is the becquerel (Bq) and denotes the number of decays in one second (1Bq = 1 decay / 1 second).

5 0
3 years ago
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