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Question:

Which of the following lists best illustrates the idea of increasing levels of complexity?

A Organelles, cells, tissues, organs, systems
Explaination

An organelle is a specialized structure in a cell such as a ribosome. A tissue contains a large number of similar cells that perform the same function. Likewise, an organ is made up of similar tissues that perform the same function. Organ systems are two or more organs performing similar functions.