Often in conducting multi-centered (multiple locations) Randomized-Controlled Trials, individuals are recruited for a study from a study site until there are enough individuals for the study.  For example, in a COVID-19 Phase 3 randomized-controlled trial, a clinic might recruit high risk healthcare workers non-randomly (i.e. Nurses working in the Emergency Department) for the study.  Recruitment of individuals continues on an ongoing bases until a quota (target) number of study subjects is achieved.  What kind of sampling is this?

By 1500, France, the Netherlands, and Germany __________________ trade as/than Italy.

During its lifetime, the Sophia Hagai has served as all of these, save one.  Which is the one ?

Of these, which is the only Masterbuilder that was never in charge of the construction of the Duomo?

The ____________________________ was begun in 1386, and is still being built today.

Four Structural Innovations Allowed the construction of Medieval Cathedrals.  Which of these was not one of these innovations?

When you begin to develop sexually is determined by ____________.

A genotype interacts with the environment to produce observable characteristics known as a ____________.

DNA is present in ____________ only.

Match the the situation in the left with the appropriate response in the right.