What is the basic building block of all living things?

• Atom

• Cell

• Tissue

• Organ

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Which of the following is NOT made of cells?

• Skin

• Water

• Bone

• Muscle

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What is a tissue?

• A group of organs that work together

• A group of cells that work together to perform a function

• A single cell

• A non-living structure

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Which statement is part of the cell theory?

• All living things are made of tissues

• All living things are made of cells

• Only animals are made of cells

• Cells are not important

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Which of the following best describes an organ?

• A group of cells that perform the same function

• A structure made of cells and tissues that performs a specific function

• A non-living part of the body

• A single cell

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Which of the following is an example of an organ system?

• Heart

• Muscle tissue

• Circulatory system

• Skin cell

Why do different tissues have differently structured cells?

• Because they are all the same

• Because they perform different functions in the body

• Because they are non-living

• Because they are made of rocks

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How are plants similar to animals in terms of their structure?

• Both are made of rocks

• Both are made of cells and organized into tissues and organs

• Only animals have organs

• Plants are not made of cells

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If you examine a desk under a microscope, what would you expect to see?

• Many cells

• No cells, because it is non-living

• Tissues

• Organs

Which of the following best explains why skin cells and nerve cells look different?

• They are from different organisms

• They perform different functions, so their structures are different

• Only nerve cells are living

• Skin cells are not made of cells

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