Hooper hypothesized that hiv-1 first entered humans in which decade?

What is a group of organisms that are closely related and share similar characteristics

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel