Question

Which level of organisation is found in majority of animals?
(a)Cellular grade (b)Cell-tissue grade (C)Tissue-organ grade (d)Organ-system grade​

Answer 1

Explanation:

hope it will help u big bro

Answer 2

Organ-system grade level of organisation is found in majority of animals

Explanation:

• D is the right answer. Grade of the organ system
• The animal kingdom as a whole is multicellular.
• These functions are handled by specialised cell groupings. Sponge organisation is an example of this. From the phylum Aschelminthes onwards, different organs are connected to form the organ system in the majority of members of the animal kingdom.

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