A student is building a model of the human body's organizational levels. She places a label for "organ" between two other levels. Which two levels should be placed directly below and directly above "organ"?

System below and organism above

Which of the following best describes the role of the muscular system?

It produces movement by contracting and relaxing

It filters waste from the blood

Which of the following best describes the function of the circulatory system?

It transports blood, oxygen, and nutrients throughout the body

It breaks down food into smaller molecules

It allows the body to inhale and exhale air

It connects bones and allows movement

A student creates a model showing cells grouped into tissues, tissues forming organs, and organs working together in systems. Which concept does this model best represent?

The hierarchical organizational structure of a multicellular organism

The process of digestion in the human body

The way the nervous system sends signals to muscles

The steps the circulatory system uses to pump blood

A student notices that when she exercises, her breathing rate and heart rate both increase. Using your knowledge of body systems, explain which two systems are working together and why this response is necessary for life.

The respiratory and circulatory systems work together to deliver more oxygen to muscles that need extra energy

The digestive and skeletal systems work together to provide energy and support during exercise

The nervous and muscular systems work together to slow down the body and conserve energy

The skeletal and muscular systems work together to increase the amount of nutrients absorbed during exercise

A student is comparing two body systems. System A breaks food into nutrients that can be used by the body. System B moves those nutrients through the blood to cells all over the body. Which conclusion best explains why both systems are necessary for life?

Without System A processing nutrients and System B delivering them, cells would not receive the energy needed to survive

Both systems work independently and do not affect each other's functions

System A replaces System B when the body needs more energy during exercise

System B can absorb nutrients directly from food without the help of System A

A student is designing a model to show how the human body is organized. She wants to show that humans are multicellular organisms. Which sequence should she use to correctly represent the levels from least complex to most complex?

Tissue → Cell → System → Organ → Organism

Organ → Cell → Tissue → Organism → System

A student reads that a person with a damaged nervous system may have trouble moving their muscles. Using evidence from what you know about body systems, which statement best explains this observation?

The nervous system sends signals to the muscular system to control movement, so damage can disrupt the ability to move

The nervous system produces the energy muscles need to contract, so damage stops movement entirely

The muscular system controls the nervous system, so muscle damage causes nerve damage

The skeletal system relies on the nervous system to grow bones, which then support muscles

A student is comparing the digestive system and the respiratory system. She wants to determine how each system contributes to keeping the body alive. Which statement best compares the functions of these two systems as they relate to life functions?

The digestive system provides nutrients for energy while the respiratory system provides oxygen for cells to use that energy, and both are essential for survival

Both systems work to remove waste from the body in the same way

The respiratory system breaks down food while the digestive system moves oxygen to cells

Both systems pump blood to different parts of the body to keep organs functioning

A student is using a model to show how the human body is organized as a multicellular organism. She places a single muscle cell at the bottom of her model. She then adds muscle tissue, the heart, and the circulatory system above it. Which level of organization is missing from her model, and where should it be placed?

Organism is missing and should be placed at the very top, above the circulatory system

Organism is missing and should be placed between the heart and the circulatory system

System is missing and should be placed between muscle tissue and the heart

Tissue is missing and should be placed between the circulatory system and the organism

Exploring Human Body Systems

Authored by Jessica Revilla

Science

5th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the smallest unit of organization in the human body?

Organ

Tissue

Cell

System

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct order of organizational levels in the human body from smallest to largest?

Organism → System → Organ → Tissue → Cell

Cell → Tissue → Organ → System → Organism

Tissue → Cell → Organ → Organism → System

Cell → Organ → Tissue → System → Organism

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which body system is responsible for breaking down food so nutrients can be absorbed by the body?

Respiratory system

Circulatory system

Digestive system

Nervous system

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of the respiratory system?

To pump blood throughout the body

To take in oxygen and release carbon dioxide

To send signals from the brain to the body

To support and protect the body

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A group of similar cells working together to perform a specific function is called a —

Organ

Organism

System

Tissue

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of an organ in the human body?

Muscle tissue

The heart

The circulatory system

A red blood cell

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of the skeletal system?

To carry oxygen to cells throughout the body

To control body movements using electrical signals

To provide structure, support, and protect organs

To digest food and absorb nutrients

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Exploring Human Body Systems

Which of the following is the smallest unit of organization in the human body?

What is the correct order of organizational levels in the human body from smallest to largest?

Which body system is responsible for breaking down food so nutrients can be absorbed by the body?

What is the main function of the respiratory system?

A group of similar cells working together to perform a specific function is called a —

Which of the following is an example of an organ in the human body?

What is the primary function of the skeletal system?

Which body system sends messages between the brain and other parts of the body?

A student is building a model of the human body's organizational levels. She places a label for "organ" between two other levels. Which two levels should be placed directly below and directly above "organ"?

Which of the following best describes the role of the muscular system?

Access all questions and much more by creating a free account

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