Describe some of the ways that trading takes place.

Which organisims can cause diseases a. micro organisims b. multicellular organisnims c. both d. neither

What inspired to create the film gladiator

Which of the following characterize the historical move toward urbanization? i. increase in pollution ii. increase in frequency of natural disasters iii. increase in incidence of infectious disease a. i b. ii c. i and ii d. i and iii e. i, ii and iii