​In Addition to Its Positive Features, Civilization Had a Dark

question 55

Multiple Choice

​In addition to its positive features, civilization had a dark side that included

• A)increased epidemic diseases.
• B)inadequate sewage systems.
• C)more destructive warfare.
• D)slavery.
• E)all of the above

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Definitions:

Hilum

The part of an organ where blood vessels, nerves, and other structures enter or exit.

Simple Squamous Epithelium

A single layer of flat cells that lines surfaces involved in diffusion, osmosis, or filtration, such as blood vessels and air sacs of lungs.

Smooth Muscle

Involuntary, non-striated muscle found within the walls of organs and structures such as the esophagus, stomach, intestines, bronchi, uterus, urethra, bladder, and blood vessels.

Goblet Cells

Specialized epithelial cells found in the respiratory and intestinal tracts, known for their role in producing and secreting mucus.