Unicellular and Multicellular
Which is the order of cellular organization from least to most complex in multicellular organisms?
A. cell, tissue, organ, organ system, organism
B. tissue, cell, organ, organ system, organism
C. cell, organ, tissue, organ system, organism
D. organism, organ, organ system, tissue, cell
A. cell, tissue, organ, organ system, organism
Remember: CTOOO!
Which best describes the function of the skeletal system?
A. It transports oxygen to cells and tissues.
B. It gives shape and support to the human body.
C. It takes in and breaks down all necessary nutrients for the body.
B. It gives shape and support to the human body.
Which are parts of the digestive system?
A. mouth, lungs
B. mouth, teeth
C. mouth, brain
B. mouth, teeth
Which is a function of the cardiovascular system?
A. to move water throughout the body
B. to provide structural support for the body
C. to eliminate waste from the body
D. to transport gases throughout the body
D. to transport gases throughout the body
How are the skeletal and circulatory systems alike?
A. They help give the body shape.
B. They help the body make oxygen.
C. They help the body remove waste.
D. They help the body produce new blood.
D. They help the body produce new blood.
How can a Paramecium carry out all of life’s functions?
A. by having specialized cells
B. by being larger that most organisms
C. by being smaller that most organisms
D. by performing all processes in one cell
D. by performing all processes in one cell
Which best describes a function of the circulatory system?
A. transport blood
B. provide oxygen
C. help the body move
A. transport blood
In which system of the human body does the heart belong?
A. skeletal system
B. respiratory system
C. cardiovascular system
C. cardiovascular system
Which system produces red blood cells?
A. skeletal
B. nervous
C. digestive
D. circulatory
A. skeletal
For which function do the respiratory and muscular systems need to work together?
A. hearing sounds
B. processing thoughts
C. making new blood cells
D. removing waste from the body
D. removing waste from the body
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.
B. It is a complete organism.
Which body system’s main purpose is to help the body move?
A. digestive system
B. muscular system
C. respiratory system
B. muscular system
Which body system includes the lungs?
A. respiratory system
B. digestive system
C. skeletal system
A. respiratory system
What is the main function of the nervous system?
A. clean waste from the cells
B. absorb nutrients for energy
C. deliver messages to the brain
C. deliver messages to the brain
Which system moves waste from the digestive system?
A. nervous system
B. muscular system
C. circulatory system
B. muscular system
What is the difference between single-celled organisms’ and multicellular organisms’ ability to survive?
A. Multicellular organisms depend on other organisms for survival, while single-celled organisms do not.
B. Single-celled organisms depend on other organisms for survival, while multicellular organisms do not.
C. Single-celled organisms contain many specialized cells necessary for survival, while multicellular organisms do not.
D. Multicellular organisms contain many specialized cells necessary for survival, while single-celled organisms can survive alone.
D. Multicellular organisms contain many specialized cells necessary for survival, while single-celled organisms can survive alone.
Which body system carries signals to and from the brain?
A. respiratory
B. circulatory
C. nervous
D. skeletal
C. nervous
Which is a major organ of the circulatory system?
A. brain
B. heart
C. kidney
D. stomach
B. heart
Which best describes a function of the circulatory system?
A. transport blood
B. provide oxygen
C. help the body move
A. transport blood
Why does damage to the skeletal system have an effect on the other systems?
A. Nutrients for other systems would not be passed on by the skeletal system.
B. The skeletal system would not be able to pass on messages from the brain.
C. Nutrients needed to repair the skeletal system would be taken from other systems.
C. Nutrients needed to repair the skeletal system would be taken from other systems.
Which accurately explains how an organism is capable of survival?
A. An amoeba can perform all of life’s processes even though it is singlecelled.
B. A grasshopper can live off only one food source even though it is single-celled.
C. A fish can exist if it lives in a group with many organisms even though it is single-celled.
D. An earthworm can survive by using its long, straight digestive system even though it is single-celled.
A. An amoeba can perform all of life’s processes even though it is singlecelled.
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 the heart and blood that delivers messages throughout the body
B. a system made up of lymph and blood that delivers nutrients and removes waste from the body
Which example best shows structures that make up the digestive system in the human body?
A. heart, blood, vessels
B. nose, trachea, lungs
C. brain, spinal cord, nerves
D. esophagus, stomach, intestines
D. esophagus, stomach, intestines
Which system is controlled by involuntary muscle movement in the diaphragm?
A. digestive
B. respiratory
C. cardiovascular
B. respiratory
Which best explains how the muscular system relies on the respiratory system?
A. The respiratory system cools the muscular system.
B. The respiratory system acts as the support system for the muscular system.
C. The respiratory system brings oxygen into the body for the muscular system to use.
C. The respiratory system brings oxygen into the body for the muscular system to use.