Question

Match the following levels of organisation with their respective example.

	Level		Example
A	Cellular	1	Chordates
B	Tissue	2	Platyhelminthes
C	Organ	3	Coelenterates
D	Organ system	4	Sponges

• A. A-1, B-2, C-3, D-4
• B. A-2, B-1, C-4, D-3
• C. A-4, B-3, C-2, D-1
• D. A-3, B-4, C-1, D-2

Answer 1

The correct option is C A-4, B-3, C-2, D-1

The members of kingdom Animalia have different levels of body organisation. Some like sponges exhibit cellular level of organisation. In coelenterates, cells are arranged to perform specific functions and hence is called tissue level of organisation. Organ level of organisation is exhibited by members of platyhelminthes. In animals like annelids, arthropods, molluscs, echinoderms and chordates, organs have associated to form functional systems and exhibit organ system level of organisation.