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Katen [24]
3 years ago
6

If two species physically capable of mating but fertilization is unable to occur, this is an example of what type of reproductiv

e barrier?
Biology
1 answer:
igomit [66]3 years ago
4 0
<span>This barrier is known as reproductive isolation and and generally occurs when two species have incompatible genitalia which are unable to function together. It can also occur when the sperm of the male species is unable to be fertilized by the female, regardless of genital compatibility.</span>
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3 years ago
Kapoor 2014. Effect of orthodontic forces on cytokine and receptor levels in gingival crevicular fluid: A systematic review.
Alchen [17]

The publication about the effect of orthodontic forces on cytokine and receptor levels in gingival fluid investigates how this treatment can increase inflammation.

<h3>What are cytokines?</h3>

Cytokines are molecules of the immune system that act during different types of immune responses, especially in inflammatory pathways.

Cytokines are mainly secreted by helper T immune cells (T cells) and macrophages.

In this case, the publication above mentioned uses different cytokine biomarkers to test inflammatory responses after orthodontic treatment (e.g., IL-1β, TNF-α, IL-8, etc).

In conclusion, the publication about the effect of orthodontic forces on cytokine and receptor levels in gingival fluid investigates how this treatment can increase inflammation.

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7 0
2 years ago
The flat area surrounding the mouth of the Mississippi River is covered with rich sediments important to farming in this area. T
leonid [27]

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6 0
4 years ago
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astra-53 [7]

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Following are the factors are given below:-

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