EVERYDAY SCIENCE

Detailed explanation-1: -Hexactinellid sponges are sponges with a skeleton made of four-and/or six-pointed siliceous spicules, often referred to as glass sponges.

Detailed explanation-2: -what is six rayed spicules In some sponges, the spicules consists of many rays (straight arms or lines) arising from the centre, they are called rayed spicules. The rayed spicules that have six rays (straight lines) arising from centre are termed as six rayed spicules.

Detailed explanation-3: -Glass sponges in the class Hexactinellida are animals commonly found in the deep ocean. Their tissues contain glass-like structural particles, called spicules, that are made of silica (hence their name).

Detailed explanation-4: -Hexactinellids. They are found in marine and the deep sea. The skeleton is made up of six-rayed siliceous spicules.

Detailed explanation-5: -Sponges in the Class Hexactinellida are commonly called glass sponges because their six-rayed spicules are made silica.