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Mazyrski [523]
3 years ago
13

How an immune response stars after a macrophage attacks a pathogen

Biology
1 answer:
marishachu [46]3 years ago
4 0
After the macrophage fails the Helper T Cell stimulates the B cells (create antibodies) if pathogen is extracellular and Cytotoxic T Cells (killer T cells, release perforin) if pathogen is intracellular. Once the pathogen is killed the B Cells create Memory B Cells and the Killer T Cells create memory T Cells. 
<span>Hope that's helpful.</span>
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what is the characteristic of a cell membrane that controls which substances can enter and exit the cell
lorasvet [3.4K]

Answer:

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3 0
2 years ago
PLEASE HELP ME AND EXPLAIN!!!<br>THANK U FOR THE HELP!!!
sergij07 [2.7K]

An example of a false negative is taking an HIV test and having the test come back negative to say the patient is clean, but in reality they have HIV. Another example of a false negative is a woman taking a pregnancy test saying "not pregnant" (i.e. test is negative), but she actually is pregnant. Between those two examples, it is better to have a false negative pregnancy test because it is non life threatening.

A false positive example would be getting bad news you have cancer, when you actually don't have cancer. Another false positive example is a test saying you have a cold virus, when in actuality you don't. The first example mentioned would have the patient likely go through intense chemo treatments which would greatly affect their livelihood. The second example is a more harmless false positive as it would involve at most a flu shot if anything.

6 0
3 years ago
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Artemon [7]

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4 0
2 years ago
Compare and contrast the advantages and disadvantages of selective breeding versus genetic modification. Why might a person choo
maw [93]

Answer:

Here are just some facts that you can put into paragraph form:

<u>Pros of GMO:</u>

They are "perfect" in theory

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<u>Pros of Breeding:</u>

Definitely more organic and healthy (i guess)

More authentic - they're the "real stuff"

People might feel safer when eating organic stuff

Explanation:

<em>I rlly hope this helps :)</em>

7 0
2 years ago
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