A method of assessment that requires students to perform, produce, or demonstrate skills representing realistic learning demands.

What initially spread the Black Death?

How did the Little Ice Age contribute to the increased use of fossil fuels?  

They lost large numbers of people, which put a strain on industry, and made them question the knowledge of the church and rulers. This statement explains how the Black Death affected the:

What contributed to the end of the Yuan dynasty?  

The death of the clergy due to the Black Death made kings more reliant on educated members of the merchant class, thus consolidating land under a ______________, which threatened the old-fashioned landed elite. In addition, the Hundred Years War encouraged feelings of nationalism that consolidated empires. 

You create a stable transgenic line of flies with an overexpression transgene that causes Ultrabithorax (Ubx) overexpression in only the 2nd thoracic segment of a fly (“T2” in brown) and nowhere else. Below is shown a wild type fly and a summary of some key genetic interactions that usually occur. Evaluate whether each statement below represents a logical outcome of this modification to T2 (true or false). Antp transcription will be inhibited in T2. [blank1] Antp transcription will be released from inhibition in T3. [blank2] T2 will grow a haltere instead of a wing. [blank3] T3 will grow a wing instead of a haltere. [blank4]

Classify each described regulatory mechanism according to the figure below.  LacI inhibits lac operon transcription only when it is not bound by allolactose. [blank1] Catabolite Activator Protein (CAP) binds to and promotes lac operon transcription, but only when CAP is bound to cyclic AMP (cAMP). [blank2] TrpR binds to and inhibits the trp operon when it is bound to Trp amino acids but not when Trp is absent. [blank3] The glucocorticoid receptor (GR) activates the transcription of target genes only when it is bound by adrenocorticotropic hormone (ACTH). [blank4]

Identify the tooth part that #1 is pointing to.

Which stage of tooth development is described and shown in the photo? A band of epithelial tissue called the dental lamina connects the developing tooth bud to the epithelial layer of the mouth.