SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Vertebrates
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Invertebrates
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Either A or B
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None of the above
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Detailed explanation-1: -The phylum Porifera comprises the sponges. Sponges are simple invertebrate animals that live in aquatic habitats.
Detailed explanation-2: -While sponges, like corals, are immobile aquatic invertebrates, they are otherwise completely different organisms with distinct anatomy, feeding methods, and reproductive processes.
Detailed explanation-3: -The approximately 5, 000 living sponge species are classified in the phylum Porifera, which is composed of three distinct groups, the Hexactinellida (glass sponges), the Demospongia, and the Calcarea (calcareous sponges). Sponges are characterized by the possession of a feeding system unique among animals.
Detailed explanation-4: -Invertebrates are animals without a backbone. They are the most numerous animals on Earth. Most invertebrates are insects.