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nadya68 [22]
3 years ago
9

How does the human brain receive messages and send signals to the body about what's happening?

Biology
2 answers:
diamong [38]3 years ago
8 0
The average human brain contains about 86 billion nerve cells, called neurons. These are the building blocks of your brain. Neurons communicate with each other by sending chemical and electrical signals. ... Impulses rush along tiny fibres, like electrical wires, from one neuron to the next.
ludmilkaskok [199]3 years ago
6 0

Answer:

heres how

Explanation:

Neurons communicate with each other by sending chemical and electrical signals. Each neuron is connected with other neurons across tiny junctions called “synapses.” Impulses rush along tiny fibers, like electrical wires, from one neuron to the next. Electrical impulses travel through neurons.

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How are endocytosis and exocytosis different from diffusion?
gladu [14]
Exo is spitting big things out. endo is pulling big things in. diffusion is molecules moving from an area of high concentration to an area of low concentration until it is balanced
4 0
3 years ago
Angelina is worried about her roommate, Katie. Katie has been skipping meals lately, and when she does go to the dining hall, sh
viva [34]

Answer:

Anorexia nervosa

Explanation:

  • Anorexia nervosa is characterized by a strong desire to lose weight due to the fear of becoming thin.
  • Here the person is on a low caloric restriction diet, and the person often assumes that he/she is overweight even though the person is underweight.
  • In the given situation, Katie is skipping meals and throwing away food and constantly losing weight, all these are the characteristic symptoms of anorexia nervosa as described above.
7 0
3 years ago
What is the organism called that only feeds on consumers called
Mandarinka [93]
Herbivores

Carnivores, organisms that consume animals, and omnivores, organisms that consume both plants and animals, are the third trophic level. Autotrophs are called producers, because they produce their own food. Herbivores, carnivores, and omnivores are consumers. Herbivores are primary consumers
3 0
3 years ago
(d) State the null hypothesis for the experiment whose data are graphed in Figure 2. Provide evidence to support or refute the s
Varvara68 [4.7K]

The null hypothesis here is "the insertion of the wild type MSH2 gene does NOT reduce the number of <em>C. neoformans </em>C3 and C6 cells". This hypothesis is not supported by Figure 2, thereby the alternative hypothesis is accepted.

In the scientific method, a null hypothesis is a plausible explanation that states that there is no statistically significant difference between a certain feature and/or variable of a particular population.

In this case, the null hypothesis indicates that there are no differences associated with the insertion of the wild-type MSH2 gene variant (i.e., the normal allele) in the growth rate of <em>C. neoformans</em> strains on a medium containing a toxic chemical (mutagenic agent).

Figure 2 does not support the null hypothesis because the growth of wild-type MSH2 gene inserted <em>C. neoformans</em> C3 and C6 strains is inhibited when they grow on a medium containing a toxic chemical, thereby this hypothesis is rejected and the alternative hypothesis is accepted.

Learn more in:

brainly.com/question/4454077

7 0
2 years ago
What does a correlation of -0.9 mean?
allsm [11]

Answer:

A strong negative (downward sloping) linear relationship

Explanation:

4 0
3 years ago
Read 2 more answers
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