The body cells of sponges that secrete materials for the formation of skeletal spicules are:
Correct answer: D. Amoebocytes
- A. Porocytes
- B. Pinacocytes
- C. Choanocytes
- D. Amoebocytes
Explanation
The correct answer is amoebocytes. Amoebocytes are crucial in sponges for producing skeletal structures, as they secrete the materials needed to form spicules, which provide support and protection.Skeletal formation, which is specifically the role of amoebocytes.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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