Answer:
the 3rd one and the last one
Explanation:
I think the correct answer would be the left atrium. Mitral valve stenosis is the narrowing of the mitral valve in the heart. This valve does not properly open which blocks the flow of blood into the left atrium. Hope this answers the question.
What do you mean ???????????
Answer:
Explanation:
What are the different types of interactions in nature?he interaction among organisms within or between overlapping niches can be characterized into five types of relationships: competition, predation, commensalism, mutualism and parasitism.
Answer:
Explained
Explanation:
The first thing that the etiologist can do is try and culture bacteria from the tissue samples in the lab. And then study about the bacterium's properties and characterstics that are leading to causing diseases in the humans.
