Lesson 9 ·Class 9 · Five Kingdom Classification · Match Lab
The Nine Animal Phyla
One defining feature each.
Match each phylum to the feature that defines it.
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Most phylum names describe the defining feature: Porifera = pores, Platyhelminthes = flat worms, Arthropoda = jointed feet, Echinodermata = spiny skin.
What this lesson covers
Challenges to clear
- Match all nine phyla.
- Connect the phylum with true ring-like segments to its name.
The task
Match each phylum to the feature that defines it.
What this lesson covers
- Porifera — Body covered in pores, with a canal system; no true tissues (Pore-bearers — the sponges. Water flows in through pores and out through the osculum.)
- Cnidaria — Stinging cells called cnidoblasts; radially symmetrical (Hydra, jellyfish and corals all sting.)
- Platyhelminthes — Flat, ribbon-like unsegmented body with no body cavity (Flatworms — tapeworm and liver fluke.)
- Nematoda — Cylindrical unsegmented body, pointed at both ends (Roundworms such as Ascaris.)
- Annelida — Body divided into true ring-like segments (Earthworm and leech — annulus means ring.)
- Arthropoda — Jointed legs and a chitinous exoskeleton (Arthros = joint, podos = foot. The largest phylum of all.)
- Mollusca — Soft unsegmented body, usually with a calcareous shell and a muscular foot (Snail, octopus and mussel.)
- Echinodermata — Spiny skin, water-vascular system, five-rayed symmetry as an adult (Starfish and sea urchin — and they are exclusively marine.)
- Chordata — A notochord, dorsal hollow nerve cord and pharyngeal gill slits at some stage (Includes every vertebrate, and us.)
Hint
Most phylum names describe the defining feature: Porifera = pores, Platyhelminthes = flat worms, Arthropoda = jointed feet, Echinodermata = spiny skin.