From an Educational Perspective, Deafness Is Defined as a Hearing

question 24

True/False

From an educational perspective, deafness is defined as a hearing loss of more than 90 dB in either ear.

---

Definitions:

Sponge

Simple aquatic animals with porous bodies through which water can circulate, belonging to the phylum Porifera.

Blastopore

The opening that develops during early embryonic development, leading to the formation of the digestive tract in animals.

Deuterostomes

Deuterostomes are a major group in the animal kingdom characterized by the development of the anus from the first opening in the embryo, with humans and other vertebrates being examples.

Protostomes

A clade of animals characterized by embryonic development in which the mouth forms before the anus during early embryogenesis.