Answer:
<h2> I don't know but my Answer is </h2><h3>from different environments ,each structure suits their environment better than the other's</h3>
The answer is Porifera.
Porifera is phylum that includes sponges. <span>Their body is full of holes and it is easily for water to enter and exit these holes. </span>Sponges are commonly used for washing the dishes, but it is most likely that these are artificial sponges. Still, they are made modeled by real sponges. Rarely, the real sponges are used as bath or dish washing.
Answer : cathode, protocathode
During an electrochemical reaction, electrons move through the external wire toward the cathode and positive ions in the salt bridge move toward the protocathode.
Answer:
A few of the positive particles aimed at a gold foil.