Answer:
The correct answer will be option-B.
Explanation:
A neurotransmitter is a chemical messenger used by the nerve cells to transmit the signals from one neuron to another neuron and muscle cell at the synaptic cleft. The common neurotransmitter is acetylcholine, dopamine, serotonin and others.
The neurotransmitter can be excitatory that is causing the generation of the action potential in the neurons or inhibitory that is prevent the generation of neuron in neuron cell. This depends on the receptors to it binds.
The neurotransmitters can be degraded or can be taken back after the work is completed. thus, Option-B is the correct answer.
Answer:
it is a failure of tolerance (self-tolerance) and specificity (recognition)
Explanation:
Type 1 diabetes is a chronic disease caused by the selective destruction of β cells that are involved in the production of insulin in the pancreas. Type 1 diabetes can be classified into two types: Type 1A diabetes (the immune form of the disease) and Type 1B diabetes (the non-immune form of the disease). Type 1A diabetes is considered an autoimmune disorder where immune responses against pathogens suffer a failure of tolerance to antigens in the β-cells of the pancreatic islets. Thus, Type 1A diabetes is characterized by the process of recognition of β-cell antigens (autoantigens) by the immune system. This disease is often caused by genetic factors associated with mutations in the human leukocyte antigen (HLA) class II region located on chromosome 6.
Correct Statements are -
- They’re made up of more than one substance.
- They’re readily available in nature.
<h3>
What are Composite Materials?</h3>
- Composite materials are created by combining two or more substances with dissimilar properties.
- Composite materials have distinct properties that distinguish them from their constituents, and the constituents can be easily distinguished within the composite materials because they do not blend together.
- Some composite materials are abundant in nature. Wood, for example, is a composite material made up of cellulose and lignin.
To learn more about Matter from the given link
brainly.com/question/1738648
#SPJ4
Answer:
Which nonspecific defense mechanism increases the resistance of cells to viral infection and slows the spread of disease?
the nonspecific defense mechanism that increases the resistance of cells to viral infection and slows the spread of disease is called phagocytic barrier
Explanation:
Phagocytic barrier helps to attack any foreign materials that enteiers the body system sych as bacteria, viruses among others.
Sorry its a very long answer-
1.) Failure to maintain the rule of law
The government's repeated failures to bring levels of violent crime under control contributed to an environment which saw people resort to violence without fear of arrest or successful prosecution.
2.) Border control
3.) Corruption
4.) Employment
5.) Education
This has been government's biggest failure and carries much of the blame for the high unemployment levels. It is arguable whether current state education is in its totality any better than that under apartheid. Only 1% of black matriculants achieve a good HG maths pass.
The education system is a good example where policy failures in one area compounded those in another.
6.) Slowing economic growth
7.) Foreign policy
8.) Service delivery
9.) Race relations
