Human Body Systems 1
Which best describes the purpose of the respiratory system?
a. to supply oxygen to cells.
b. to supply protection to organs
c. to supply food and nutrients to the body
d. to supply blood to the brain and muscles
A - What is supplying oxygen to the cells?
How are multi-celled organisms different from single-celled organisms?
A. Multi-celled organisms must reproduce.
B. Multi-celled organisms must obtain energy.
C. Multi-celled organisms have microscopic body structures.
D. Multi-celled organisms have specialized cells to perform life functions.
D. Multi-celled organisms have specialized cells to perform life functions.
Which are parts of the digestive system?
a. mouth, lungs
b. mouth, teeth
c. mouth, brain
B- What is the mouth and teeth?
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.
C. Humans need many cells to carry out life processes.
Which best describes 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.
D. A snake is made up of many cells that carry out many different life processes when needed.
Which body system carries signals to and from the brain?
a. respiratory
b. circulatory
c. nervous
d. skeletal
What is nervous system?
Molly is reading a book in science class. She reads one sentence that says, “This organism is capable of surviving as a single cell.” Which organism is she most likely reading about?
A. a mushroom
B. a bacteria
C. an insect
D. a flower
B. a bacteria
Which body system's main purpose is to help the body move?
a. digestive system
b. muscular system
c. respiratory system
B - What is muscular system?
Which best describes a single-celled organism?
A. a small group of organisms
B. a small organism with a variety of parts
C. an organism that relies on other organisms to survive
D. an organism that is able to carry out all its life processes
D. an organism that is able to carry out all its life processes
Which best describes the system that provides transportation for cell necessities using the bloodstream?
A. muscular system
B. circulatory system
C. respiratory system
D. cardiovascular system
B. circulatory system
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.
How are multi-celled and single-celled organisms different?
A. Multi-celled organisms need energy to survive, while single-celled organisms need no energy to survive.
B. Single-celled organisms can be seen without using a microscope, while multi-celled organisms are microscopic.
C. Multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions with one cell.
D. Single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions.
C. Multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions with one cell.
Which best describes a function of the circulatory system?
a. transport blood
b. provide oxygen
c. help the body move
A - What is transport blood?
How does an ant benefit from being a multicellular organism?
A. Ants have one specialized cell that performs a variety of tasks necessary for life.
B. Ants perform a variety of tasks to be able to survive so they need many specialized cells.
C. Ants have one type of cell and this cell performs the same task to help them survive.
D. Ants are small organisms but depend on only two different types of cells to help them survive.
B. Ants perform a variety of tasks to be able to survive so they need many specialized cells.
Charles is reading a book about bacteria. Which statement will Charles most likely read in his book?
A. Bacteria have one cell that performs many tasks.
B. Bacteria have one cell that performs a single task.
C. Bacteria have many cells and each performs many tasks.
D. Bacteria have many cells and each performs a single task.
A. Bacteria have one cell that performs many tasks.
Which system moves waste from the digestive system?
a. nervous system
b. muscular system
c. circulatory system
What is the muscular system?
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.
A. Both need food for energy and growth.
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.
Bacteria often live inside the body of a living host, such as a dog. Which best describes how bacteria carry out the processes necessary for survival?
A. Bacteria borrow cells from the host to carry out life processes.
B. Bacteria use their many different cells to carry out life processes.
C. Bacteria are made up of one cell which is responsible for carrying out all life processes.
D. Bacteria use their many different cells as well as cells from the host to carry out life processes.
C. Bacteria are made up of one cell which is responsible for carrying out all life processes.
Which best describes the relationship between the skeletal system and the circulatory system?
A. The skeletal system transports red blood cells after the circulatory system produces them.
B. The skeletal system protects red blood cells and the circulatory system pumps those cells through veins and arteries.
C. The skeletal system produces red blood cells and the circulatory system transports those cells where they need to go.
D. The skeletal system helps put oxygen in red blood cells and the circulatory system helps those cells rid the body of carbon dioxide.
C. The skeletal system produces red blood cells and the circulatory system transports those cells where they need to go.
Which system is controlled by involuntary muscle movement in the diaphragm?
a. digestive
b. respiratory
c. cardiovasular
What is respiratory system?
Fungi and bacteria are both single-celled organisms. What do they most likely have in common?
A. Both fungi and bacteria are large organisms.
B. Both fungi and bacteria can carry out all life functions in their one cell.
C. Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.
D. Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.
B. Both fungi and bacteria can carry out all life functions in their one cell.
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.
What is the main purpose of single-celled organisms?
A. to survive
B. to reproduce
C. to produce food for other organisms
D. to work with other single-celled organisms
A. to survive
The circulatory system transports waste through the bloodstream. Which is the best example of another system working to remove waste from the body?
A. The respiratory system releases carbon dioxide.
B. The skeletal system produces new red blood cells.
C. The digestive system breaks down food into nutrients.
D. The nervous system send signals from the brain to the muscles.
A. The respiratory system releases carbon dioxide.