Middle School Life Science : Organisms
Study concepts, example questions & explanations for Middle School Life Science
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Example Questions
Example Question #1 : Organisms
Which of these objects is NOT an organism?
a rock
a flower
a dog
a tree
a rock
The answer is "a rock"
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Nonliving things are not made of cells. A rock is an example of a non-living thing.
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #2 : Organisms
Which of these is an example of an organism?
a rock
a tree
water
mountains
a tree
The answer is a "tree."
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Nonliving things are not made of cells. A rock is an example of a non-living thing.
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #3 : Organisms
This image shows a microscopic creature that is similar to a mite. It is made of more than one cell and can reproduce. This means that the creature is:
a multicellular organism
a non living organism
a unicellular organism
a bacteria
a multicellular organism
The answer is "a multicellular organism."
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #4 : Organisms
If you look closely at this paramecium, you can see it has a cell membrane, and many organelles. Paramecium also feed on other things like it. This means a paramecium is a:
a multicellular organism
a unicellular organism
a nonliving single cell
a multicellular nonliving germ
a unicellular organism
The answer is a unicellular organism.
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #5 : Organisms
A human heart is an example of:
a living organism
a single cell
none of these
a group of cells
a group of cells
The answer is a group of cells. It is not an organism because a heart can not reproduce on its own.
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #6 : Organisms
Which of these resources is abiotic?
a waterfall
none of these
iron ore
both of these
both of these
The answer is both of these.
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #7 : Organisms
Which of these is a biotic factor in an environment?
soil
grass
fallen tree branches
water
grass
The answer is grass.
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #8 : Organisms
Which of these are you most likely to see on the inside of a unicellular organism?
cells
organelles
organs
a digestive system like a humans
organelles
The answer is organelles because cells are composed of smaller parts called organelles.
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #9 : Organisms
You look inside an organism and you see a single cell wall, a few chloroplasts, and a food vacuole. Based on this description, this organism is probably:
an animal
a plant-like unicellular organism
a plant
an animal-like unicellular organism
a plant-like unicellular organism
The answer is a plant-like unicellular organism, because it has the features of a plant and is made of only one cell.
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Non-living things are not made of cells. A rock is an example of a non-living thing. Living parts of environments are considered “biotic factors,” and nonliving parts of environments are considered “abiotic factors.”
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
Example Question #10 : Organisms
After wood is removed from a tree, is it still a living thing?
No, it is no longer living because it has no more cells.
Yes, it's still living because even though it's dead, it was once living.
No, it is no longer living because it cannot grow, reproduce, or respirate.
Yes, it is still living because it's still made of cells.
No, it is no longer living because it cannot grow, reproduce, or respirate.
The answer is "No, it is no longer living because it cannot grow, reproduce, or respirate."
Organisms are living things. Living things have the ability to reproduce, grow, and breathe. They are made of cells. Unicellular organisms like paramecium are made of one single cell while multicellular organisms like trees are made of many. Nonliving things are not made of cells. A rock is an example of a non-living thing.
You may be wondering whether wood is a "living thing" since it can no longer reproduce once separated from a tree. Think of it like dead skin. It is made of cells, and used to be part of a living thing, but is no longer a growing, breathing organism itself.
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