Pseudocoelom (false coelom): formed by splitting of mesoderm. Coelom is filled with muscles and tissues. E.g. Nematodes
True Coelum: real cavity formed by splitting of mesoderm lying between body wall and gut wall. E.g. Annelids
Haemocoelom: Coelom cavity filled with blood. E.g. Arthopods, mollucs etc. These organisms have opened type of circulatory system. Haemocoelom works as blood vessels.
NOTE: Cockroach has haemocyazine
Locomotary Organs or Structures:
- Pseudopodia in Amoeba
- Flagella in Euglena
- Cillia in Paramecium
- Setae in Earthworms
- Parapodia in Nereis
- Appenduges in Arthopods
- Muscular foot in Mollucs
- Tube feet in Starfish
- Fins in Fishes
- Limbs in Vertebrates
Nutririon:
- Holozoic: takes solid food
- Holophytic: plant/solid food taking
- Saprozoic: animals feeding on dead organic matter
- Saprophytic: plants feeding on dead organic matter
- Parasitic: live on other organisms
- Carnivorous: feed on animals flesh
- Herbivorous: feed on plants
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