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Stels [109]
3 years ago
13

Which diagnostic test would be ordered by the primary healthcare provider to confirm sarcoidosis? chest x-ray blood test electro

cardiogram magnetic resonance imaging skin allergy testing?
Biology
1 answer:
ollegr [7]3 years ago
6 0
The answer is <span>chest x-ray 
</span>
Sarcoidosis is a disease that caused by the appearance of multiple gr<span>anulomas, l</span>ump that made of inflammatory cells. Chest x-ray should show these lump easily, especially in the lungs because it is filled with air. I think MRI could also help to diagnose but x-ray should be easier and cheaper. 
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Explain why you would sooner be hit by a ping pong ball vs a baseball. Use all the terms: force mass and acceleration!!
kati45 [8]

Answer:

Because the ping pong ball has a lesser mass than a baseball; hence the ping pong ball will accelerate faster than the baseball when a constant force is applied to both

Explanation:

The force applied to an object is a product of its mass and acceleration i.e. F=ma. According to Newton's second law of motion, the relationship between the mass of an object and its acceleration when force is applied to it was described.

In a summary, the second law states that that the acceleration of an object increases with increased force and decreases with increased mass. This means that the more the mass of an object, the greater the force needed to make it accelerate and also the more the mass, the lesser it accelerates.

In this case, a ping pong ball has a lesser mass compared to a baseball, hence, it will accelerate faster than the baseball assuming an equal force was applied. Since the ping pong ball will accelerate faster, it will hit a person faster than the baseball.

4 0
3 years ago
Which organelle controls when and what proteins are made? *
Tanzania [10]

Answer: B. Nucleus

Explanation:

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2 years ago
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3 0
2 years ago
Arrange the order of events for the internalization of LDL particles into cells:
ElenaW [278]

Answer:

The correct answer is "5-1-3-2-4".

Explanation:

Internalization of LDL particles into cells, is needed to form the intracellular vesicles known as endosomes. The order of events that allow for this process are:

5) LDL receptors migrate to the cell surface and cluster in clathrin-coated pits. Clathrin acts directing the receptors to the cell membrane region where endosomes are formed.

1) A combination of cholesterol and apolipoprotein binds to LDL receptors and becomes internalized as endocytotic vesicles. Once the receptors are in the proper cell membrane region, cholesterol and apolipoprotein are bound and internalized.

3) Several endocytotic vesicles fuse to form an endosome.

2) The environment of the endosome becomes acidic, which causes the LDL to dissociate from its receptor; additionally, the endosome fuses with a lysosome. LDL should be dissociated from its receptor since it is going to be degraded in the following step.

4) The LDL particle is degraded by the lysosome. This takes place after endocytosis, when LDL particles are transported into lysosomes once they are fused, cleaving the cholesterol esters into cholesterol and fatty acids.

6 0
3 years ago
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