The human body has about 10 bacterial cells for every eukaryotic cell. bacteria coat our skin, gut, and mouth. also present are protists, archaeans, and viruses. collectively, these organisms are our microbiota. for most members of our microbiota, our body provides their environment (or space to live). they, in turn, have no effect on us. this is an example of: predation. mutualism. commensalism. an antagonistic relationship.

commensalism

Explanation:

Commensalism is a type of ecological interaction between two species in which one speices benefits while other is unaffected. Commensalism  also can be considered as a type of symbiosis-two species that live together. The interaction between human and its microbiota is beneficial for microbiota while it has no effects on humans.

Although, some bacteria (gut bacteria) can help in digestion. In this case, interaction with human is mutualism (both have benefits).

is this a psat question, if so do not cheat try your best.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.