Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Respiration is facilitated by a pair of ctenidia, whereas excretion and osmoregulation are brought about by a pair of nephridia.

From Textbooks • Jan. 1, 2015

Respiration is facilitated by gills known as ctenidia.

From Textbooks • Apr. 25, 2013

The mantle cavity encloses the ctenidia as well as a pair of nephridia.

From Textbooks • Apr. 25, 2013

They exchange gases using a pair of ctenidia, and excretion and osmoregulation are carried out by a pair of nephridia.

From Textbooks • Apr. 25, 2013

Two pairs of ctenidia, and two pairs of renal tubes without reno-pericardial apertures.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various