Question

Animals of which phylum contain spicules as their endoskeleton

Answer 1

phylum porifera has animals which contain spicules as their endoskeleton.

They have two types of them silicious and calcareous.

Answer 2

Hey Friend,

◆ Answer -

Animals of phylum Porifera contain spicules as their endoskeleton.

◆ Phylum Porifera -

• Phylum Porifera includes sponges which are a.k.a sessile metazoans.
• Their body has lot of pores/holes known as ostia.

Endoskeleton of sponges show different types of spicules -

1. calaceous spicules due to calcium carbonate
2. siliceous spicules due to silica
3. sponging fibres due to proteins

Hope this helped you.