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WorksheetsTopic 8 Lesson 1 Circulatory and Respiration Systems
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
The smallest units of life that make up all living things are ____
a)
tissues
b)
cells
c)
organs
d)
organ systems
2.
What is considered to be the lowest level of organization in a multicellular organism?
a)
cell
b)
organ system
c)
tissue
d)
organ
3.
A collection of cells with similar functions form ____
a)
an organ
b)
a tissue
c)
an organism
d)
an organ system
4.
The stomach, small intestines, and large intestine are all organs. When they work together to process food, they form a functional unit known as _____
a)
an organism
b)
an organ system
c)
a tissue
d)
a cell
5.
Which of the following correctly orders the organization in plants and animals from least to complex?
a)
Cell --> Organ --> Tissue --> Organ System --> Organism
b)
Atom --> Cell --> Organ --> Tissue --> Organism
c)
Cell --> Tissue --> Organ --> Organ System --> Organism
d)
Organism --> Organ System --> Organ --> Tissue --> Cell
6.
Tissues working together to perform specialized functions are called ___
a)
an organ
b)
an organism
c)
a population
d)
a cell
7.
In the sequence from simplest to most complex level of organization, which level is one level more complex than cells?
a)
Cells
b)
Tissues
c)
Organ Systems
d)
Organisms
8.
Lungs, Diaphragm, Brain, Ribs, Skulls, and Heart are all examples of ____
a)
Cells
b)
Organs
c)
Tissues
d)
Organ Systems
9.
In humans, the heart is an organ that pumps blood through blood vessels. The combination of the heart and blood vessels is classified as _____
a)
a tissue
b)
an organ
c)
an organ system
d)
an organism
10.
The respiratory system is made up of the airways, lungs, and respiratory muscles. The lungs are classified as ______
a)
cells
b)
tissues
c)
organs
d)
organisms
11.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
12.
Which body system gets oxygen from the environment and removes carbon dioxide and other wastes from the body?
a)
Circulatory
b)
Respiratory
c)
Digestive
d)
Skeletal
13.
This muscle contracts and moves down to allow the lungs to expand during respiration.
a)
trachea
b)
bronchial tubes
c)
diaphragm
d)
epiglottis
14.
In our lungs, _________ is removed and ________ is absorbed.
a)
oxygen ... carbon dioxide
b)
carbon dioxide ... oxygen
c)
oxygen ... nitrogen
d)
carbon dioxide ... nitrogen
15.
Lungs are part of the __________ system of a human.
a)
circulatory
b)
respiratory
c)
digestive
d)
muscular
16.
What is the main organ of the circulatory system?
a)
small intestine
b)
bone
c)
lungs
d)
heart
17.
The job of the heart is to . . .
a)
pump blood around the body.
b)
send food to the small intestines.
c)
break down food.
d)
give energy to the body.
18.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
19.
The System that contains blood vessels and the heart is the...
a)
circulatory system
b)
respiratory system
c)
digestive system
d)
Integumentary System
20.
The small blood vessels where exchange of O2 and CO2 occurs are called...
a)
arteries
b)
capillaries
c)
veins
d)
heart
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