Use the taxonomy outline below to answer the question.
Phylum Porifera (Sponges)
Hexactinellida (Glass sponges)
Venus flower basket
Staurocalyptus
Demospongia
Red volcano sponge
Spongilla lacustris
Geodia barretti
Calcarea
Sycon capricorn
Leucetta chagosensis
Which of the following statements is correct based on the outline above?

Question

Quizplus · Accepted Answer

The red volcano sponge is more closely related to Geodia barretti than to Sycon capricorn. We know this is true because the red volcano sponge and Geodia barretti are in the same class (Demospongia), while Sycon capricorn is in the class calcaria.
A demospongia is a type of calcarea is incorrect. Demospongia and calcarea are two different classes under the phylum Porifera. 
A Spongilla lacurstris is a type of red volcano sponge is incorrect. Both Spongilla lacustris and the red volcano sponge are types of Demospongia. 
Calcarea are more closely related to demospongia than to hexactinellida is incorrect. From the outline, there is no way of knowing which among calcarea, demospongia and hexactinellida are the most closely related.

Use the Taxonomy Outline Below to Answer the Question