The first time a pathogen hits, our bodies do not know how to handle it properly. This means that our bodies take more time to handle it the first time around. The second time around, however, our bodies have altered so that they can handle the pathogen more efficiently. Hope this helps!
Answer:
Scientific articles dealing with forms of nutrition and efficient feeding.
Scientific journals from health organizations.
Explanation:
Reliable sources are those that present information made by professionals and people who, in fact, know the subject they are addressing. It is necessary that these sources bring scientifically proven information, as it prevents incorrect, unnecessary and false information from being linked in society, especially information about health, food and nutrition.
The two sources shown above, can be considered reliable sources because they are made by professionals, who through studies and scientific research can prove all the information displayed.