What do organelles combine to form?

The correct answer, which is cells, reflects the foundational concept in biology that organelles are specialized structures within a cell that perform specific functions. Each organelle, like the nucleus or mitochondria, contributes to the overall function of the cell. Cells are the basic units of life, and they consist of various organelles working together to maintain vital processes.

While tissues consist of groups of similar cells collaborating to perform specific functions, the initial step in biological organization is indeed the formation of a cell from organelles. Thus, cells are built from these organelles, and they serve as the building blocks for higher levels of organization, such as tissues, organs, and systems.