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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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How are the ear and the eye alike? How are they different?
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Answer:

SAME They are both senses/ DIFFRENT

and a ear can hear and eyes can see

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3 years ago
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(03.05 hc) the base pairs in a dna strand are held together with hydrogen bonds. if the two nitrogenous bases in each pair were
asambeis [7]

The cell would have to take in and use more energy in order to break the covalent bonds.

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Hydrogen bonds :

are the chemical mechanism that governs the complementarity of the bases of DNA. This correspondence is unique thanks to the geometry of the hydrogen donor atoms and the acceptors that form the bases.

The (hydrophobic) bases are stacked inside the double helix of DNA; their plane is perpendicular to the axis of the double helix. The outside (phosphate and sugar) is hydrophilic.

The hydrogen bonds between the bases of one strand and the bases of the other strand keep the 2 strands united.

One purine on one strand necessarily binds to a pyrimidine on the other strand. As a corollary, the number of purine residues is equal to the number of pyrimidine residues.

* A binds to T (by 2 hydrogen bonds).

* G binds to C (via 3 hydrogen bonds: more stable bond: 5.5 kcal vs 3.5 kcal).

What part of the DNA strand do hydrogen bonds hold together?

hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases, sugars, and phosphate groups (both within each component and between components). Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.

Learn more about DNA strand:

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7 0
2 years ago
The atomic mass is the
Bumek [7]

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Number of protons plus the number of neutrons.

Explanation:

Most of an atom's mass is in its nucleus. The nucleus is made up of protons and neutrons.

4 0
3 years ago
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netineya [11]

Answer:

it is b

Explanation:

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Please help!
WARRIOR [948]
B:2 it is measured by the crest of the wave or as I say the top of the wave
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