Aresearcher is studying whether 3-year-old children prefer to play with male or female toys. boys and girls are placed in a room filled with toys and the researcher observes and records what he sees through a one-way mirror. what kind of research method is being used

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.

1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships