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.
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Population density is the number of people per unit of area. Usually measured by how many people are in a square mile or square kilometer.
Answer = <span>Decreased net energy yield</span>
Earthquakes and tremors near it, and smoke
Answer:
Plants breathe carbon dioxide and expel air for us to breathe thus is why we are not all dead...yet
Explanation: