is how connected people are to one another and to shared ways of thinking and acting.

I believe the answer is social interaction

Explanation:

Considering the definition of social interaction ("A social interaction is an exchange between two or more individuals and is a building block of society"), this is the most logical answer.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

answer; ///any two strangers are likely to share many coincidental similarities;