There are numerous circumstances that give pathogens the chance to harm people.
The first occurs when an infection has already weakened the immune system. In situations like this, other pathogens may infect the host opportunistically and cause an infection. If the human host does not maintain proper personal and environmental hygiene, that is another condition. Many pathogens thrive in unclean environments, so by failing to maintain proper environmental hygiene, a person increases his risk of contracting a pathogen.
Finally, since so many pathogens are transferred by vectors, humans are more likely to contract the diseases that these vectors aid in spreading if they do not take the necessary precautions to stop their activity.
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Answer:
3 is c
4 is b
because some people chew anything that goes in their mouth so they dont care what will happen and that gives gum and tooth disease
It might not tell you how healthy a person is because most of the time people's bodies weigh differently like for example a person may be 175 it's not really stomach fat that consists of it may be the breast and the thighs .
I would recommend going to bed EXTRA EARLY!! I usually get tired to when I pack, or clean my room. But, that is usually what I do. Go to bed very early. Have fun on your trip!
