5.L.1 Science EOG Review

Which of the following statements best describes unicellular organisms? 5.L.1.1

• Unicellular organisms have transport systems between cells.

• Unicellular organisms have many cells that must work together to perform life processes.

• Unicellular organisms are a single cell that performs all life processes.

• Unicellular organisms live only inside other living organisms.

Which system functions to transport messages between the brain and other parts of the body?

5.L.1.2

• respiratory system

• nervous system

• digestive system

• skeletal system

Which body system is made up of the following structures: mouth, esophagus, stomach, and

intestines? 5.L.1.2

• digestive system

• muscular system

• respiratory system

• cardiovascular system

Which two body systems function (work together) to help a person walk, run, jump, and swim? 5.L.1.2

• digestive and muscular systems

• circulatory and respiratory systems

• nervous and digestive systems

• skeletal and muscular systems

Which system functions to take oxygen into the body and release carbon dioxide from the body?

5.L.1.2

• nervous system

• digestive system

• respiratory system

• skeletal system

What is the function of the cardiovascular system? 5.L.1.2

• To provide protection to the body’s organs

• To transport needed substances throughout the body and carry away wastes

• To provide movement to body parts

• To break food down into substances the body can use

Why have multicellular organisms developed transport systems? 5.L.1.1

• Cells within a multicellular organism are too small for a direct exchange of substances.

• Cells within a multicellular organism are too far away from the environment for a direct exchange

  of substances.

• Cells within a multicellular organism are too large for a direct exchange of substances.

• Multicellular organisms have not developed transport systems.

Which of the following is an example of a multicellular organism? 5.L.1.1

• human

• flower

• fish

• all of the above

What is the function of the heart in the circulatory system? 5.L.1.2

• It pumps blood through vessels throughout the body.

• It helps the body make more blood cells.

• It forms a network of vessels throughout the body.

• It protects the bones of the skeletal system.

Leo is observing a sample of pond water using a microscope. He sees an organism moving around in the water and thinks it might be a multicellular organism. Which of the following characteristics of the organism make it most likely to be a multicellular organism? 5.L.1.1

• The organism is made of many cells.

• The organism has cells that perform specialized functions necessary for life.

• The organism has developed transport systems.

• All of the above.