1. / What roles do the muscular and respiratory systems serve in the body when someone lifts weights?
A. / The muscular system allows the person to lift the weights, while the respiratory system provides oxygen to the body.
B. / The muscular system provides oxygen to the body, while the respiratory system allows the person to lift the weights.
C. / The muscular system provides nutrients to the blood, while the respiratory system provides sweat to cool the body.
D. / The muscular system provides sweat to cool the body, while the respiratory system provides nutrients to the blood.
2. / Which of the following best describes the job of the skeletal system?
A. / Gives shape and support to the body.
B. / Sends messages from the stomach to the brain.
C. / Brings in and breaks down all nutrients for the body.
3. / Which best describes humans?
A. / Humans are made up of many cells and all cells combined carry out a single life process.
B. / Humans are made up of many cells and all cells combined carry out life processes.
C. / Humans are made up of one single cell that carries out a single life process.
D. / Humans are made up of one single cell that carries out all life processes.
4. / Which two human body systems are mostresponsible for getting oxygen to cells?
A. / digestive and skeletal
B. / skeletal and circulatory
C. / circulatory and respiratory
D. / respiratory and digestive
5. / Which best describes the circulatory system?
A. / a system made up of the brain and nerves that delivers nutrients and removes waste from the body
B. / a system made up of lymph and blood that delivers nutrients and removes waste from the body
C. / a system made up of the brain and nerves that delivers messages throughout the body
D. / a system made up of theheart and bloodthat delivers messages throughout the body
6. / How are single-celled organisms and multi-celled organisms similar?
A. / Both need food for energy and growth.
B. / Both have a skeletal system for support.
C. / Both require the interaction of many cells to survive.
D. / Both are able to carry out all life functions in only one cell.
7. / Which statement best describes a bacterial cell?
A. / It contains more than one cell.
B. / It is a complete organism.
C. / It is part of a larger organism.
D. / It contains different kinds of cells.
8. / Which is a characteristic of bacteria?
A. / large in size
B. / able to survive as a single cell
C. / found only in one particular environment
D. / made up of many different cells working together
9. / Which body system includes the lungs?
A. / respiratory system
B. / digestive system
C. / skeletal system
10. / Which best explains why humans are multicellular organisms?
A. / Human cells are too small to function alone.
B. / Human cells join together to form one large cell.
C. / Humans need many cells to carry out life processes.
D. / Humans have many systems that perform the same function.
11. / Which best describes a single-celled organism?
A. / an organism with one cell that uses other cells to survive
B. / an organism with many cells that work together to survive
C. / an organism with many cells that battle each other to survive
D. / an organism with one cell that performs all of its life processes
12. / Which best describes the role of the respiratory system?
A. / It helps people stand upright.
B. / It helps people eat and digest different foods.
C. / It helps people transport blood throughout their bodies.
D. / It helps people breathe in oxygen and breathe out carbon dioxide.
13. / Which best explains how a single-celled organism can survive without other cells?
A. / They do not need any substance from outside of the cell.
B. / They are able to perform all necessary functions within one cell.
C. / They do not need to perform more than one function to survive.
14. / Fish are multi-celled organisms with specialized cells. What would most likely happen if their specialized cells did not function properly?
A. / The fish would decrease in size.
B. / The fish would increase in size.
C. / The fish would die.
15. / When someone is exercising, which is most likely a function of both the circulatory and respiratory systems?
A. / to help the body sweat
B. / to make the muscles work
C. / to provide oxygen to the body
D. / to protect bones from breaking
16. / Which major body system breaks down food to release nutrients needed for energy production?
A. / digestive
B. / muscular
C. / respiratory
D. / cardiovascular
17. / Which bestdescribes a snake?
A. / A snake is made up of one cell that carries out one life process at a time.
B. / A snake is made up of many cells that carry out one life process at a time.
C. / A snake is made up of one cell that carries out many different life processes when needed.
D. / A snake is made up of many cells that carry out many different life processes when needed.
18. / Which is mostdirectlyconnected to the circulatory system?
A. / nose
B. / lungs
C. / mouth
D. / trachea
19. / Which body system sends electrical signals to all other body systems?
A. / circulatory system
B. / digestive system
C. / muscular system
D. / nervous system
20. / Which is an example of a single-celled organism?
A. / amoeba
B. / insect
C. / fish
D. / worm
21. / In which way are multicellular organisms similar?
A. / All of their cells transport food.
B. / All of their cells have the same job.
C. / All have cells that work together to keep the organism alive
D. / All have one cell that meets all the basic needs of the organism.
22. / How does the skeletal system benefit the digestive system?
A. / It protects organs within the system.
B. / It supplies blood to organs within the system.
C. / It provides oxygen to organs within the system.
D. / It provides nutrients to organs within the system.
23. / Mr. Cooper is teaching his students about cells. He gives the following description of an organism:
This organism can only be seen through a microscope. In addition, it does not depend on other cells to survive. It can independently perform all of its major functions needed to survive.
Which best describes this organism?
A. / It is a single-celled organism.
B. / It is a multi-celled organism.
C. / It is a complex organism.
24. / Which example best shows structures that make up thedigestive system in the human body?
A. / heart, blood, vessels
B. / nose, trachea, lungs
C. / brain, spinal cord, nerves
D. / esophagus, stomach, intestines
25. / Which best compares the respiratory system to the circulatory system?
A. / The respiratory system transports oxygen to cells, while the circulatory system provides oxygen for cells.
B. / The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells.
C. / The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
D. / The respiratory system rids the body of waste, while the circulatory system breaks down food for cell energy.
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