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dalvyx [7]
3 years ago
9

An________ reveals the electrical activity of the brain by producing a record of brain waves. a _________ reveals activity in va

rious parts of the brain based on patterns of blow flow, oxygen use, and glucose consumption.
Biology
1 answer:
statuscvo [17]3 years ago
5 0
An electroencephalogram (EEG) reveals the electrical activity of the brain by producing a record of brain waves. It is noninvasive and uses electrodes which are placed along the scalp. It records the electrical signals of the brain. This can help diagnose sleep disorders and epilepsy 

A PET Scan, which is short for positron-emission tomography, reveals activity in various pars of the brain based on patterns of blood flow, oxygen use, and glucose consumption. It is an imaging test that makes use of radioactive materials or substances called tracers. It helps to see how the brain functions and it can be used as a diagnostic test for disease or injury in the brain. 
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The brain volumes ​(cm cubed​) of 20 brains have a mean of 1116.2 cm cubed and a standard deviation of 127.7 cm cubed. Use the g
Shkiper50 [21]

Answer:

Yes

Explanation:

Range rule of thumb predicts the Range to be  a multiple of 4 of the standard deviation or to be four times  the standard deviation. Making the usual values equal to 2 standard deviations distanct of the mean of the data distribution.

In a given distribution with mean and standard deviation that is obtained, the usual values in mean (as seen in the attached image).

2*standard deviation and mean + 2*standard deviation.

If the data point is not up to the mean

- 2* standard deviation is taken to be significantly low.

If the data point is more than the mean

+ 2*standard deviation is taken to be significantly high.

Let's take the xbar to be the mean and s as standard deviaiton

Given,

mean, xbar = 1116.2

standard deviation, s =127.7

The range rule of thumb shows that the usual values are within 2 standard deviations from the mean

Lower boundary

      = xbar - 2s

       = 1116.2 - 2(127.7)

       = 860.8

Upper boundary

      = xbar + 2s

       = 1116.2 + 2(127.7)

       = 1371.6

We should note that 1411.6 is not between 860.8 and 1371.6, which connotes that 1411.6cm^3 is unusually high.

3 0
3 years ago
“Assume a molecule must cross the plasma membrane into a cell. The molecule is a very large protein. How will it be transported
svet-max [94.6K]
It will be transported into the cell through the process of endocytosis, which is a form of active transport. Active transport requires energy in the form of ATP. Hope this helps! :)
3 0
3 years ago
What tipe of cactus is this? ​
Fed [463]

Answer:

Hey!

I think it is the San Pedro Cactus!

Explanation:

i have one at home just like that!

HOPE THIS HELPS!!

4 0
3 years ago
Help..
s2008m [1.1K]

Answer:

- It produces NADH.

- It occurs in the cytoplasm of the cell.

- It converts glucose into pyruvate.

Explanation: I'm pretty sure this is right. I hope this helps! :)

4 0
3 years ago
Socialism is the dominant economic force in the world today. true or false?
Katena32 [7]
False, its capitalism.
6 0
3 years ago
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