Question

In which phylum will you place the organisms which have:
a: calcarous spines on their body.
b: The presence of holes or pores all over the body.

Answer 1

Answer:

Porifera

Explanation:

Because pores are exclusive feature of porifera and has spiny endo-skeleton made up of spongin fibers

Answer 2

Answer:

Answer would be Porifera

Explanation:

Calacareous bodied animal and small opening pores are present called "Ostia"

And they have water canal system ...