Pharyngoesophageal Segment. An anatomic tube composed of a mucosal lining surrounded by a layer of muscle that extends from the nasal cavity to the f...
The disease is caused by the ciliate protozoan Ichthyophthirius multifiliis, commonly called ich or ick. Fish infected with ich typically develop sma...
The goal of science is to understand the natural world through systematic study. Scientists gain knowledge through scientific investigations. A scien...
Shaping = a process used in teaching in which a behavior or skill is gradually taught by differentially reinforcing successive approximations to the ...
