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Juli2301 [7.4K]
3 years ago
14

What is the most important era in which mammals appeared ?

Geography
2 answers:
natta225 [31]3 years ago
3 0

Answer:

In my opinion I think that's it's number 4

nikklg [1K]3 years ago
3 0
The answer is number four, precambrian!! :)
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First it is important to clarify that your question is incomplete, I do not see the graph you are talking about ..

Although faced with the situation, I took the trouble to investigate in medical pages on this subject, and I conclude that the hypothesis of the doctors is correct ...

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Explanation:

Allergies are increased immunological reactions against an antigen, so I added to your question that ambrosia pollen generates more allergies in the respiratory tract than at the cutaneous level, that is why it cooperates with other alterations that environmental contamination generates.

The greater the contamination, the greater the presence of allergies or the longer the allergies will be.

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