25. Which one is the largest animal phylum? A.Arthropod B.Mollusca C.Chordata D.Coelomates
Answer: Option A Solution: Arthropod, (phylum Arthropoda), any member of the phylum Arthropoda, the largest phylum in the animal kingdom, which includes such familiar forms as lobsters, crabs, spiders, mites, insects, centipedes, and millipedes. About 84 percent of all known species of animals are members of this phylum.