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fredd [130]
3 years ago
7

Explain how an immune response starts after a macrophage attacks a pathogen.

Biology
1 answer:
a_sh-v [17]3 years ago
3 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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Axons from mPFC neurons synapse onto intercalated cells in the amygdala that contain the neurotransmitter __________.
sammy [17]

The medial pre Frontal Cortex neurons synapting with the intercalated cells of Amygdala contains <u>GABA</u> as the neurotransmitter.

Option a

<u>Explanation:</u>

The Amygdala has two types of nerve cells getting attached with it primarily. They are the fibres from the mPFC or medial pre Frontal Cortex and the vIPAG or ventrolateral periaqueductal grey. These neurons do have different functions on the whole body.

The fibres from the mPFC do have emotional function on the human body whereas the fibres of vIPAG do have an effect on the muscle tone . And it's seen that both the nerve fibres that are getting attached with the intercalated cells of Amygdala do secrete GABA and are inhibitory GAB Anergic in nature.

8 0
3 years ago
Which absorbs more carbon dioxide: the atmosphere or the ocean?
Alex777 [14]

Answer:

The atmosphere

Explanation:

Most of the air travels through the atmosphere tho very little travels through the ocean from air vents, or scuba diver oxygen tanks.

I hope this helped!

3 0
3 years ago
When Mendel performed his experiments, only one trait appeared in the F1 generation, (in this case, round peas) and the other tr
bearhunter [10]

Answer:

See the answer below

Explanation:

The explanation I would give to the phenomenon is that<u> the round trait in peas completely covers or nullify the wrinkled trait when they are together.</u> In order words, <u>whenever a single the allele of both trait come together to form a new trait, the round trait allele dominates and mask the expression of the allele of the wrinkled trait</u>.

<em>This is what Mendel explained and dominance/recessive effects. The round trait was dominant over the wrinkled trait while the wrinkled trait was said to be recessive and can only be expressed when alone.</em>

3 0
2 years ago
A line pass though the points (-1,10) and (3,2). Which shows the graph of this line
VMariaS [17]

Answer:

6

Explanation:

4 0
3 years ago
I need help with 8-11
maria [59]
8-11 is -3. When subtracting a bigger number from a smaller number, the answer will always be negative.
6 0
3 years ago
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