- Choanocytes
- Cnidocytes
- Nematocysts
- Sponges
No category found.
- Medusa and larva
- Polyp and medusa
- Cyst and polyp
- Larva and adult
- Bilateral
- Radial
- Asymmetrical
- Biradial
- Porifera
- Cnidaria
- Platyhelminthes
- Annelida
- Chitin
- Calcium carbonate or silica
- Cellulose
- Collagen
- Amoebocytes
- Spongocytes
- Choanocytes
- Pinacocytes
- Ostium
- Osculum
- Spicule
- Cnidocyte
- Oscula
- Spicules
- Ostia
- Choanocytes
- Cellular level
- Tissue level
- Organ level
- Organ system level
- Jellyfish
- Sponges
- Corals
- Flatworms
- Annelida
- Arthropoda
- Mollusca
- Echinodermata
- Mouth
- Anus
- Stomach
- Coelom
- Blastopore forms anus
- Radial cleavage
- Indeterminate cleavage
- Blastopore forms mouth
- Cnidaria
- Porifera
- Annelida
- Mollusca
- Presence of a distinct head
- Division of the body into repeated segments
- Formation of germ layers
- Absence of a coelom
- Acoelomates
- Pseudocoelomates
- Coelomates
- Diploblasts
- Earthworm
- Tapeworm
- Roundworm
- Starfish
- Fully lined by mesoderm
- Partially lined by mesoderm
- Not lined by mesoderm at all
- Lined by endoderm
- Nematoda
- Annelida
- Platyhelminthes
- Mollusca
