The correct option is A.
Multicellular organisms are made up of many different cells. Each type of cell perform a unique basic function which another type of cell can not perform. Cells are usually equipped to carry out their functions by their components, structures and sizes.
Platyhelminthes have the following important characteristics: They are triploblastic, acoelomate, and bilaterally symmetrical. They may be free-living or parasites. The body has a soft covering with or without cilia.
Answer:
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Answer:
If we remove a levels of organization then the study of biology i.e life would become very difficult. We won't be able to differentiate between the tissues, organs and systems of an organism and hence, studying the characteristics of an organism will become extremely difficult. We won't able to look at the similarities among organisms and hence will not be able to relate species to anther.
Removing a level such as community or ecosystem will make it difficult to understand the food chains and food web as well.