Examlex
Which of the following is/are a(n) antigen-presenting cell(s) ?
Flat Tract
A large piece of land with minimal to no slope, often used in agriculture or construction due to its ease of modification.
River
A large natural stream of water flowing in a channel to the sea, a lake, or another river, often a central feature in ecosystems and human civilizations.
Lower Reaches
The downstream part of a river close to its mouth where it meets a larger body of water.
Aquifer
An underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) that can yield significant quantities of water.
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