In Poriferans, the body is a loose aggregate of cells (meshwork of cells). Internal cavities and canals are lined with food filtering flagellated cells i.e. choanocyte/collar cell. Choanocytes help in filter-feeding. In sponges, the development of adult sponge from a diploid zygote is indirect which means it is mediated by an intermediate free-swimming flagellated larval stage for dispersal of species. The larval stage is morphologically distinct from an adult.
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of…
NEET UG 2015 — Botany Animal Kingdom
2015mcqeasy
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
Official previous-year question
Held on 30 Apr 2015 · Verified 9 Jul 2026.
Options
- A
Porifera
- B
Mollusca
- C
Protozoa
- D
Coelenterata
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