The Human Body

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What is the correct hierarchy of levels of organization in the human body?

Tissues → Cells → Organ systems → Organs

Cells → Organs → Tissues → Organ systems

Cells → Tissues → Organs → Organ systems (correct)

Organs → Organ systems → Cells → Tissues

Which statement about unicellular organisms is true?

They cannot perform complex functions

They are made of a single cell functioning on its own (correct)

They are not considered living organisms

They are always smaller than multicellular organisms

What is the function of organ systems in the human body?

To carry out specific physiological functions (correct)

To provide structural support

To produce energy for the body

To regulate genetic expression

What is the significance of the cell in living things?

It is the smallest unit of life Signup and view all the answers

How are tissues and organs related in the human body?

Tissues are made up of cells and organs are made up of tissues Signup and view all the answers

What is the function of red blood cells?

Transporting oxygen from the lungs to other cells Signup and view all the answers

Why do muscle cells tend to have a long shape?

To allow for contraction Signup and view all the answers

What is the role of platelets in the blood?

Helping the blood form a clot Signup and view all the answers

What is the function of white blood cells?

Fighting off infection Signup and view all the answers

What is the specialized function of nerve cells?

Carrying signals Signup and view all the answers

The Human Body

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Questions and Answers

What is the correct hierarchy of levels of organization in the human body?

Which statement about unicellular organisms is true?

What is the function of organ systems in the human body?

What is the significance of the cell in living things?

How are tissues and organs related in the human body?

What is the function of red blood cells?

Why do muscle cells tend to have a long shape?

What is the role of platelets in the blood?

What is the function of white blood cells?

What is the specialized function of nerve cells?

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