Which of the following phylum possess multicellular, organ grade level of organisation?
1. Platyhelminthes
2. Porifera
3. Nematode
4. Protozoa

Which of the following phyla possess multicellular organ grade level of organisation ? I. Platyhelminthes II. Porifera III. Nematoda IV. Protozoa

Which one of the following animals lack tissue or organ level of organisation?

Which of the following possess 2 : 1 type of structure.

In which of the following phylum all the animals are exclusively marine with organ system level of organisation?

In which of the following phylum all the animals are exclusively marine with organ system level of organisation?

Which of the following are correct ? (i) Sponges : Cellular level of organisation (ii) Cnidaria : Tissue level of organisation (iii) Platyheminthes : Organ level of organisation (iv) Annelids, Arthropods, Molluscs, Echinoderms and Chordates : Organ system level of organisation

Which of the following are correct ? (i) Sponges : Cellular level of organisation (ii) Cnidaria : Tissue level of organisation (iii) Platyheminthes : Organ level of organisation (iv) Annelids, Arthropods, Molluscs, Echinoderms and Chordates : Organ system level of organisation

Which of the following are correct ? (i) Sponges : Cellular level of organisation (ii) Cnidaria : Tissue level of organisation (iii) Platyheminthes : Organ level of organisation (iv) Annelids, Arthropods, Molluscs, Echinoderms and Chordates : Organ system level of organisation

Which of the following are correct ? (i) Sponges : Cellular level of organisation (ii) Cnidaria : Tissue level of organisation (iii) Platyheminthes : Organ level of organisation (iv) Annelids, Arthropods, Molluscs, Echinoderms and Chordates : Organ system level of organisation