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3 years ago

What effect does the addition of surfactant have on the airflow? How well did the results compare with your prediction?

Social Studies

1 answer:

MissTica3 years ago

3 0

Answer:

Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation. Airflow increased as predicted.

Explanation:

Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:

(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and

(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.

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Marjoe had trained his dog that whenever it saw a photo of the cat next door, it would receive a treat. Through multiple pairing

Digiron [165]

Answer:

a) spontaneous recovery

Explanation:

In classical conditioning, the term spontaneous recovery is defined as the reappearance of the conditioned response after a rest period or period of lessened response. In other words, the conditioned response is back after it was thought to have disappeared.

In this example, Marjoe trained his dog that whenever it saw a photo of the cat next door, he'd receive a treat. The dog was conditioned to start salivating (conditioned response) whenever he saw the photo of the cat (conditioned stimulus). Then Marjoe extinguished the conditioned response by presenting the photo without the treat. However, a week later, when he hold up the photo of the cat, the dog started to salivate.

That is, he came up with the conditioned response after a rest period, so he presented the response when Marjoe thought it had disappeared.

Thus, this is an example of spontaneous recovery.

Note:

b) Stimulus discrimination refers to the capacity to recognize one specific stimulus among others.

c) Stimulus generalization refers to the fact that the response appears with similar stimulus but not with only one (the dog would salivate with any picture of cats)

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2 years ago

Please hurry

mafiozo [28]

Answer:

50%

Explanation:

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2 years ago

Marti is impulsive, has an unstable sense of self, and is intensely fearful of abandonment. she wants to have close relationship

baherus [9]

Marti is suffering from Borderline personality disorder. This personality disorder is characterized by an extremely unstable and self-destructive personality, very conflictive interpersonal relationships and very frequent and extreme changes in temperament. People with this disorder often abuse substances such as alcohol or drugs and frequently put themselves at risk.

I hope my asnwer can help you.

8 0

3 years ago

A totalitarian political system ________ mixes politics with religion. is completely democratic. is government without any burea

vekshin1

Answer:

Concentrates power and closely regulates people's lives.

Explanation:

Totalitarianism relates to an extremist political system or system which governs and dominates almost every aspects of the public and private sectors. When a Authoritarian group or ruler has acquired absolute power to achieve their initial objectives if might give rise to negative consequences like

murder, violence, exclusion, negligence and coercion will affect everyone who portrays them as an obstacle in their way.

Totalitarianism is a political system or form of government that forbids opposition parties, limits personal resistance to the government and its arguments, and exerts an exceptionally high level of control over public and private life.

A totalitarian political system Concentrates power and closely regulates people's lives.

7 0

3 years ago

Read 2 more answers

What alienated Jochi from the rest of the family

Harlamova29_29 [7]

Answer:

In ties with Genghis, this culminated in a final breach. In the west of the empire, Jochi fled to his lands and never returned to Mongolia. In1226, he died. His sons, Batu Khan and Orda Khan, inherited his estate, collectively known as Jochi's Ulus.

i rewrote it for you

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2 years ago