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WorksheetsHuman Body Systems and Cells
Total questions: 40
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
How are the pictured organisms different?
a)
Organism 1 is unicellular while organism 2 is multicellular.
b)
Organism 2 is unicellular while organism 1 is multicellular.
c)
Organism 1 can move and organism 2 cannot.
d)
Organism 2 can move and organism 1 cannot.
2.
Which organism is unicellular?
a)
A
b)
B
c)
C
d)
D
3.
Which cell could belong to a leaf?
a)
only cell Y
b)
only cell X
c)
both cell X and cell Y
d)
neither cell X nor cell Y
4.
The diagram is what Paula saw while looking under a microscope at some cells. At which organism could Paula be looking?
a)
a scale from a fish
b)
a blade of grass
c)
a hair from a human
d)
a piece of snakeskin
5.
Which is a single-celled organism?
a)
A
b)
B
c)
C
d)
D
6.
Which is the name of the organ labeled X on the digestive system diagram?
a)
esophagus
b)
intestines
c)
liver
d)
Stomach
7.
To which body system does the human organ labeled X belong?
a)
digestive
b)
muscular
c)
nervous
d)
respiratory
8.
Where does the exchange of oxygen and carbon dioxide between the air and blood occur in humans?
a)
nose
b)
mouth
c)
esophagus
d)
lungs
9.
Monica studied the diagram in her science textbook illustrating how two body systems work together. Which two body systems does the diagram represent?
a)
nervous and respiratory
b)
circulatory and muscular
c)
nervous and muscular
d)
circulatory and respiratory
10.
Two body systems are shown in the diagram. One system detects stimuli and sends messages to the other system regarding touch and contact. The two systems work together to produce movement. Which two major body systems are shown?
a)
respiratory and digestive systems
b)
nervous and muscular systems
c)
muscular and respiratory systems
d)
circulatory and nervous systems
11.
The diagram shows the main structures in six of the body's systems. In which system is the brain considered the main structure?
a)
Circulatory System
b)
Digestive System
c)
Nervous System
d)
Skeletal/Muscular System
12.
The diagram shows the main structures in six of the body's systems. In which system is the heart considered the main structure?
a)
Circulatory System
b)
Digestive System
c)
Nervous System
d)
Skeletal/Muscular System
13.
Which system controls all the other systems in the body?
a)
Circulatory System
b)
Digestive System
c)
Nervous System
d)
Respiratory System
14.
Which is not a function of the skeleton?
a)
organ protection
b)
body movement
c)
supports muscles
d)
regulates body temperature
15.
What is the main job of the circulatory system?
a)
to move only oxygen through the body
b)
to move tissues in and out of the heart
c)
to move blood through the body
d)
to bring food to the blood cells
16.
The diagram shows the main structures in six of the body's systems. In which system is the stomach considered the main structure?
a)
Circulatory System
b)
Digestive System
c)
Nervous System
d)
Skeletal/Muscular System
17.
Which do muscles interact with to accomplish locomotion in animals?
a)
heart
b)
lungs
c)
nerves
d)
skeleton
18.
Which diagram shows the body system whose main function is to pass nutrients, gases, hormones, and blood cells to and from cells in the body to help fight diseases and help maintain body temperature?
a)
A
b)
B
c)
C
d)
D
19.
Which system's main function is to support and protect body structures?
a)
A
b)
B
c)
C
d)
D
20.
The diagram shows the main structures in six of the body's systems. In which system are the lungs considered the main structure?
a)
Circulatory System
b)
Digestive System
c)
Nervous System
d)
Respiratory System
21.
Which system is responsible for getting nutrients to cells in the body?
a)
Circulatory System
b)
Respiratory System
c)
Nervous System
d)
Skeletal/Muscular System
22.
This is a list of several human body systems.
*circulatory system
*digestive system
*muscular system
*skeletal system
Which two systems in the list work together to benefit the survival of humans by helping them to create shelter, pick up objects, and gather food?
*circulatory system
*digestive system
*muscular system
*skeletal system
Which two systems in the list work together to benefit the survival of humans by helping them to create shelter, pick up objects, and gather food?
a)
circulatory and digestive
b)
digestive and muscular
c)
muscular and skeletal
d)
skeletal and circulatory
23.
Which statement, regarding a set of human body structures, is correctly paired with the human body system to which it belongs?
a)
Arteries and veins are part of the nervous system.
b)
Tendons and ligaments are part of the skeletal system.
c)
Small intestines and esophagus are part of the muscular system.
d)
Trachea and lungs are part of the respiratory system.
24.
How does the human respiratory system work with the circulatory system?
a)
by bringing oxygen into the blood in the lungs
b)
by removing blood from the lungs when needed
c)
by taking liquid wastes from the heart into the digestive system
d)
by taking in air directly through the skin
25.
In humans, between what two systems does most gas exchange occur?
a)
digestive and circulatory systems
b)
circulatory and respiratory systems
c)
respiratory and digestive systems
d)
muscular and respiratory systems
26.
Which two human systems are pictured?
a)
digestive and nervous
b)
circulatory and respiratory
c)
muscular and skeletal
d)
circulatory and nervous
27.
The diagram shows a human body system. What are the two functions performed by this body system?
a)
produces and transports oxygen throughout the body
b)
digests and excretes waste products
c)
controls and coordinates body activities
d)
protects and supports the body
28.
With what function is the nervous system of the body most directly involved?
a)
elimination of body waste
b)
control of bodily function and movement
c)
movement of blood through the body
d)
exchange of materials between blood and cells
29.
Which body system includes the esophagus, mouth, and the small intestines?
a)
circulatory system
b)
digestive system
c)
nervous system
d)
respiratory system
30.
Which organ is matched with the correct body system?
a)
lungs and circulatory system
b)
brain and nervous system
c)
heart and digestive system
d)
skull and respiratory system
31.
In which situation would the offspring learn a new behavior?
a)
the parent getting a disease
b)
the parent using tools to find food
c)
the parent getting a scar
d)
the parent breaking a bone
32.
Which characteristic of an organism is considered to be a behavior characteristic?
a)
seasonal migration
b)
shape of a sensory organ
c)
structure of body
d)
body coloring
33.
How can a baby elephant's gray skin be explained?
a)
The skin darkened due to exposure to the sun.
b)
The color was inherited from its parents.
c)
The elephant changed its color to keep insects from biting.
d)
Its skin lightened to help it blend into the environment.
34.
An inherited behavior or instinct comes naturally to an organism. Which behavior is inherited?
a)
bear hibernating
b)
bird flying
c)
dog rolling over on command
d)
tiger learning to hunt for food
35.
Dolphin trainers teach dolphins how to swim backwards upright on their tails as shown in the photograph. Which best describes the dolphin's ability to swim backwards?
a)
an inherited trait
b)
a learned instinct
c)
an inherited instinct
d)
a learned behavior
36.
Which system is responsible for getting nutrients to cells in the body?
a)
Circulatory System
b)
Respiratory System
c)
Nervous System
d)
Skeletal/Muscular System
37.
How does the human respiratory system work with the circulatory system?
a)
by bringing oxygen into the blood in the lungs
b)
by removing blood from the lungs when needed
c)
by taking liquid wastes from the heart into the digestive system
d)
by taking in air directly through the skin
38.
Which action is most likely going to produce a positive influence on an ecosystem?
a)
clearing an area for a park
b)
planting trees to replace a forest
c)
paving sidewalks around a neighborhood
d)
building a shopping mall
39.
Which type of ecosystem is terrestrial?
a)
estuary
b)
forest
c)
lake
d)
ocean
40.
The chart lists organs and identifies their functions in a human body system. Which system does the chart represent?
a)
respiratory
b)
nervous
c)
digestive
d)
circulatory
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