The Important Han Innovations Include the Development of

question 60

Multiple Choice

The important Han innovations include the development of

• A) the horse collar, the watermill, and the crossbow.
• B) the saddle, penicillin, and bronze.
• C) alcohol, the wheel, and glass.
• D) the canal, the three-field system, and concrete.
• E) the wheel, the stirrup, and the pulley.

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Definitions:

Founder Effect

A reduction in genetic variation that occurs when a new population is established by a very small number of individuals from a larger population.

Isolated Populations

Groups of organisms that are separated from exchanging genetic material with other organisms of the same species, often leading to speciation.

Antibiotic-resistant Genes

Genes in bacteria that confer resistance to antibiotics, making infections difficult to treat.

Cassette

In genetics, a segment of DNA that contains a gene or genes, often used in genetic engineering to insert new genes into organisms.