What are cells often referred to as, highlighting their fundamental role in all living organisms?

• Building blocks of life

• Energy sources

• Waste products

• Genetic codes

What term describes an organism that is composed of many cells?

• Unicellular

• Multicellular

• Single-celled

• Microscopic

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Which part of a cell is responsible for controlling its functions, often called the 'brain' of the cell?

• Cytoplasm

• Cell Membrane

• Nucleus

• Mitochondrion

Which of the following is a unique part of a plant cell that provides an additional protective barrier and helps maintain its shape?

• Nucleus

• Cell Membrane

• Cytoplasm

• Cell Wall