Hello!
In order for an animal to be a vertebrate, it must have a backbone. As can clearly be seen in any image of a sponge, it is a highly asymmetrical simple animal and does not have a backbone. Therefore, a breadcrumb sponge is not a vertebrate, or is an invertebrate.
I hope this helped!
Enlightment and other things
For lumber it is where it is rainy but not flooding in rain because if it is flooded in rain it will have rotten layers inside making it bad to use and will not be safe to use.
Answer:
From looking at a map, I can assume that it's Madagascar.
Explanation: