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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:

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

The Little Ice Age can be explained by changes in ocean circulation patterns, shifts in the Earth’s orbit, and ___________________________ that releases sulfate particles that reflected the sun’s rays

What did the Little Ice Age do to crop production?  

Why had China been a target of the Mongol Empire?  

Select the best definition of an operon.

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]

Below is shown a simplified hypothetical organism, eggman. You have made a synthetic gene, gene1, and intend to create a transgenic eggman line that expresses gene1 across all regions of its body throughout development. Given the scheme below, describe the smallest/simplest transgene that could be added to the eggman genome to accomplish expression of gene1 throughout all four main domains of eggman. Your answer should interfere with other genes as little as possible, and your answer does not need to name components related to genomic integration methods, only the functional transgene locus that could drive gene1 expression throughout eggman. [Answers should fewer than ~10 words, >20 words results in -0.5]  

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.