Examlex
In business statistics class students sit randomly without preferences.A sample is selected by including everybody who sits in the first row.This is an example of a cluster sample.
Scolex
The head or anterior end of a tapeworm, equipped with hooks and/or suckers for attaching to the intestinal wall of the host.
Tapeworm
A parasitic flatworm that lives in the digestive tracts of vertebrates, absorbing nutrients from the host's diet.
Pseudocoelom
Fluid-filled cavity between the gut and body wall; partially lined by tissue derived from mesoderm.
Tubular Digestive System
A type of digestive system in which the digestive tract forms a continuous tube from mouth to anus, allowing for sequential processing of food.
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Q281: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8253/.jpg" alt=" A)
Q307: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8253/.jpg" alt=" A)