1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svet_ta [14]
3 years ago
14

Functional Magnetic Resonance Imaging is a tool that has been very useful in identifying what parts of the brain do what. Scient

ists can have a person perform some particular activity and then look for active areas in the brain. How does fMRI work?
A. It takes a picture of the inside of the brain according to electricity levels. The more electrical current in the area, the more active it is.
B. It takes a picture of the inside of the brain according to blood flow. More blood flow indicates more activity in that area.
C. It takes images of thin layers of the brain and the more electrical activity in a layer, the more magnetic it is and this shows up in fMRI.
D. Electrodes attached to the skull can trigger activity in particular brain areas which then trigger a person to perform certain behaviors.
E. It takes a picture of the brain according to oxygen levels. More oxygen in an area indicates more activity in that area.
Biology
1 answer:
Ne4ueva [31]3 years ago
4 0

Answer:

E. It takes a picture of the brain according to oxygen levels. More oxygen in an area indicates more activity in that area.

Explanation:

Haemoglobin is diamagnetic when oxygenated but paramagnetic when deoxygenated. This distinction in magnetic characteristics leads to tiny variations in the blood MR signal. Since blood oxygenation differs, these variations can be used to identify brain activity depending on the concentrations of neural activity.

You might be interested in
Help me please,Thanks
frutty [35]
Movement of heat from one solid to another. Your hands get cold holding cold water
6 0
3 years ago
Read 2 more answers
Gases do not have a definite shape because?​
Anna007 [38]

Answer:

Gases do not have a definite shape or volume because the molecules in gases are very loosely packed, they have large intermolecular spaces and hence they move around. The force of attraction between molecules is also very less, as a result gases acquire any shape or any volume.

Therefore, gases take the shape of the container and occupy the complete volume of that particular container.

3 0
1 year ago
I had the privilege of visiting mt. st. helens in the late 1990s. one of the things i noticed was that very few plants were grow
Bingel [31]
Legumes have the ability to fix nitrogen from the atmosphere. They do this through a symbiotic relationship with nitrogen-fixing bacteria called rhizobia. These bacteria live within nodules in their root systems, and produce nitrogen compounds that the legume uses too grow.
6 0
2 years ago
Can someone answer these for me please I’m terrible at sex linked traits
givi [52]

Answer:

Q.1 There is a 0% chance that the baby will have red eyes

Q.2 There is a 100% chance

Q.4 There is a 100% chance

Explanation:

Whenever there is a dominant trait involved in traits, then there is a 100% chance that the child would end up with the same trait as the parent with the dominant trait. Hence it's name, dominant traits are dominant over recessive traits.

I don't have time to answer the rest, but I hope this can potentially help you solve the rest of the questions.

4 0
3 years ago
How much alcohol should i buy for my wedding?
uysha [10]
Hella amounts. Like, kegs of it.
7 0
3 years ago
Other questions:
  • What is an allele?
    10·1 answer
  • All of the statements about bacteria are true EXCEPT one. Which statement is not true? A) A number of useful pharmaceutical drug
    5·2 answers
  • Which is a function of a protein macromolecule
    8·1 answer
  • A new tissue engineering company would like to use autologous cell- seeded scaffolds as implants for the engineering of a few di
    6·1 answer
  • The species of plasmodium that cause the disease malaria are found in
    10·2 answers
  • If a pair of homologous chromosomes fails to separate during anaphase of meiosis I, what will be the chromosome number of the fo
    12·1 answer
  • Which organelle stores food
    5·1 answer
  • The star 61 Cygni, in the constellation Cygnus, is a little more than 11 light-years from Earth. Which of the following correctl
    15·1 answer
  • A. Describe the components of air pollution that are considered greenhouse gases.
    15·1 answer
  • Scientists use the scientific process to which mechanisms underlie observations; they do not if a particular finding is correct
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!