Question

Match the following and choose the correct options:

Column I	Column II
A. Organ level	I. Pheretima
B. Cellular aggregate level	II. Fasciola
C. Tissue level	III. Spongilla
D. Organ system level	IV. Obelia

• A. A-IV, B-III, C-I, D-II
• B. A-IV, B-II, C-III, D-I
• C. A-II, B-IV, C-III, D-I
• D. A-II, B-III, C-IV, D-I

Answer 1

The correct option is D A-II, B-III, C-IV, D-I

Fasciola is a flatworm from phylum Platyhelminthes. Flatworms have organ level of body organisation.
Spongilla belongs to the phylum Porifera and has a cellular aggregate level of body organisation.
Obelia which belongs to the phylum Coelenterata has tissue level of body organisation.
Pheretima (earthworm) which belongs to the phylum Annelida has an organ system level of organisation.