EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What class of sponges has spicules with 6 rays composed of silica?
A
Class Demospongiae
B
Class Hexactinellida
C
Class Calcarea
D
None of the above
Explanation: 

Detailed explanation-1: -The euplectella aspergillum is a glass sponge in the phylum Porifera. The body is composed of silica in the form of 6 pointed spicules. Complete step by step answer: Glass sponges in the class Hexactinellida are animals commonly found in the deep ocean.

Detailed explanation-2: -Hexactinellid sponges are sponges with a skeleton made of four-and/or six-pointed siliceous spicules, often referred to as glass sponges.

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

Detailed explanation-5: -Hexactinellids. They are found in marine and the deep sea. The skeleton is made up of six-rayed siliceous spicules.

There is 1 question to complete.