Eddie’s assignment is to prepare a dichotomous key for several objects. his first task was to arrange the objects. the objects are a lightning bug, a butterfly, a ladybug, an ant, and a canary. the best arrangement to complete his assignment is

d. in two groups with similar characteristics..

i'm doing usa test prep so good luck to you if you're doing the same.

d) in two groups with similar characteristics

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.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.