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WorksheetsMulticellular & Unicellular Organisms LNE
Total questions: 15
Worksheet time: 45mins
Name
Class
Date
1.
Which best describes a difference between a unicellular organism and a multicellular organism?
a)
A unicellular organism is a plant and a multicellular organism is a human.
b)
A unicellular organism has one purpose- to survive. A multicellular organism has many cells working together to keep the organism alive.
c)
A multicellular organism is simple and a unicellular organism is complex.
d)
A unicellular organism can only be found in certain biomes but a multicellular organism can be found anywhere on Earth.
2.
Which states a difference between an animal and an amoeba?
a)
An animal is made up of only one cell and an amoeba is made of many cells.
b)
An animal is found on land and an amoeba is found in water.
c)
An amoeba is single-celled and an animal is multicellular.
d)
An animal is a living organism and an amoeba is a non living organism
3.
Which is an example of a single-celled organism?
a)
bird
b)
cricket
c)
snake
d)
bacteria
4.
Which best explains how a single-celled organism can survive without other cells?
a)
They do not need any substance from outside of the cell.
b)
They are able to perform all necessary functions within one cell.
c)
They do not need to perform more than one function to survive.
d)
They can't survive without other cells.
5.
Which is an example of a multicellular organism?
a)
amoeba
b)
bacteria
c)
worm
d)
fungi
6.
A single-cell organism can do everything a cell from a multicellular organism can do except
a)
reproduce
b)
specialize
c)
get rid of waste
d)
use energy
7.
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.
8.
Fish are multi-celled organisms with specialized cells. What would most likely happen if their specialized cells did not function properly?
a)
The fish would increase in size.
b)
The fish would decrease in size.
c)
The fish would die.
d)
The fish would grow and thrive.
9.
Which of the following must get nutrients from a transport system?
a)
bacteria
b)
amoeba
c)
fungi
d)
nerve cell
10.
Bacteria often live inside the body of a living host, such as a dog. Which bestdescribes 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.
11.
Sue and Allie read about different kinds of organisms. They read about an organism with a respiratory system, digestive system, skeletal system, and muscular system. Which can Sue and Allie most likely conclude about this organism?
a)
The organism is unicellular.
b)
This organism is microscopic.
c)
The organism is multicellular.
d)
The organism does not have any cells.
12.
How are algae able to survive?
a)
The algae get energy from other algae.
b)
The algae do not require energy to survive.
c)
The single cell controls all the algae’s life processes.
d)
Other multi-celled organisms provide food for the algae.
13.
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 likelyreading about?
a)
a mushroom
b)
a bacteria
c)
a flower
d)
a cricket
14.
Which is an example of a multicellular organism?
a)
bacteria
b)
bear
c)
algae
d)
yeast
15.
Which is an example of a unicellular organism?
a)
flower
b)
beetle
c)
dog
d)
algae
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