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
Usimov [2.4K]
4 years ago
15

The u.S. Postal service has a monopoly on the delivery of first-class mail due to

Social Studies
1 answer:
AlladinOne [14]4 years ago
5 0

Answer:

Legal barriers limiting entry

Explanation:

Legal barriers limiting entry are obstacles that make it difficult to enter a specific market. These barriers sometimes include regulations required from the government and sometimes patents, technology challenges, start-up costs, or licensing and education requirements. They can be both beneficial and/or harmful to the economy.

You might be interested in
how do women provide food for their families in nicaragua? they work at the electricity company they sell their produce at the m
nasty-shy [4]

Answer:the dont

Explanation:

jds;av

3 0
3 years ago
What was the most important purpose of the House of Learning?
elena55 [62]

Answer:

House of Learning is a house that contains twelve scenes. Children get to select objects and characters in order to interact with the app. House of Learning is an app developed by a certified Speech-Language Pathologist, and it serves both as a tool for learning and playing.

Explanation:

5 0
2 years ago
Three days ago, a mother delivered her full-term infant who had been identified as having an in utero infection. The infant is r
Yanka [14]

Answer:

<h3>IgA, IgM and IgG</h3>

Explanation:

Immunoglobulins are antibodies. They're proteins that are fabricated by the immune system after exposure to an antigen (something harmful to your body that causes an immune response). Immunoglobulins, or antibodies, fight off germs, illness, and diseases. They circulate throughout the body and can be found in your blood, sweat, saliva, and even in your breast milk.

A newborn does not yet have a mature immune system and is often unable to mount an effective immune response to combat antigens. Newborns are generally protected by the antibodies they receive through the placenta before birth and through their mother's breastmilk after birth. These antibodies will be the same ones that are circulating in the mother's system, which will include antibodies to the microorganisms in the mother's home environment and other places she frequents. Therefore, babies generally have antibodies to the germs in their own homes.

he baby has some immunoglobulins at birth, but the sheltered intra-uterine existence limits the need for learned immune responses to specific antigens. There are three main immunoglobulins, IgG, IgA and IgM, and of these only IgG is small enough to cross the placental barrier. It affords immunity to specific viral infections. At birth the baby's levels of IgG are equal to or slightly higher than those of the mother. This provides passive immunity during the first few months of life.  

IgM and IgA do not cross the placental barrier but can be manufactured by the fetus. Secretory Immunoglobulin A (IgA) is a special immunoglobulin. It's the main antibody found in breast milk and is considered the most important immunoglobulin in breast milk. IgA is important because it coats and seals the child´s respiratory and intestinal tract to prevent germs from entering the body and the ​bloodstream. The IgA antibodies can protect from a variety of illnesses including those caused by bacteria, viruses, fungi, and parasites.

3 0
3 years ago
PLZ HELP 30 POINTS
Nookie1986 [14]
I don’t know if this is right but I think it’s: the context shows the reader why certain events are important
8 0
3 years ago
How did nationalism contribute to the Great War?
ikadub [295]

Answer:

Explanation:

The most direct way nationalism caused World War I was through the assassination of Archduke Franz Ferdinand, who was the heir to the throne of the Austro-Hungarian Empire. Many oppressed Slavic groups in the Austro-Hungarian Empire wanted to form independent nation states.

3 0
3 years ago
Other questions:
  • Which of the following is would be an opinion of the democratic Republican Party
    6·1 answer
  • Which statement about opinion polls is most accurate?
    8·2 answers
  • Careers in the fitness and wellness industry __________.
    13·2 answers
  • Cultures are described as:_______a. biological influences on human behavior. b. traditions of an economic nature that impact the
    9·1 answer
  • Why did Thomas Jefferson approve the Louisiana Purchase? A. He believed that the United States should settle lands from the Atla
    14·2 answers
  • Alice is having difficulty selling herself to employers. Her counselor concludes that her reticent nature reflects her Realistic
    6·1 answer
  • Which of these is the BEST example of spatial diffusion?
    10·2 answers
  • HIS 128TH BIRTHDAY.
    13·1 answer
  • social problems and the evils are the obstacles for the development do you agree with this statement justify your answer​
    6·1 answer
  • According to self-discrepancy theory, what emotion arises from discrepancies between ought and actual selves?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!