Question

Which among the following is incorrect about levels of organization in animals?

(a) Cells are organized in different ways to form the basic body in animals

(b) Cellular level of organization refers to the cluster of the cells that combine to form an animal body

(c) Tissue level of organization refers to the way tissues combine to form organs which in turn form animal body

(d) In organ system level of organization, various organs of the system work coordinately to achieve a specific function

This question was posed to me in examination.

Asked question is from Basis of Classification in Animals in chapter Animal Kingdom of Biology – Class 11

Answer 1

Right choice is (c) Tissue level of organization refers to the way tissues combine to form organs which in turn form animal body

To elaborate: Tissue level of organization refers to the grouping of cells to form tissues that combine to form an animal body. There are no organs present in this level of organization. Example: Platyhelmenthes.