Determine if an object is living or non-living and whether it is unicellular or multicellular
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Middle School Life Science › Determine if an object is living or non-living and whether it is unicellular or multicellular
Which of these is an example of an organism?
a tree
water
a rock
mountains
Explanation
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.
After wood is removed from a tree, is it still a living thing?
No, it is no longer living because it cannot grow, reproduce, or respirate.
No, it is no longer living because it has no more cells.
Yes, it is still living because it's still made of cells.
Yes, it's still living because even though it's dead, it was once living.
Explanation
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.
Which of these objects is NOT an organism?
a rock
a tree
a dog
a flower
Explanation
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.
A human heart is an example of:
a group of cells
a living organism
a single cell
none of these
Explanation
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.
Which of these is a biotic factor in an environment?
grass
soil
fallen tree branches
water
Explanation
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.
Which of these resources is abiotic?
iron ore
a waterfall
both of these
none of these
Explanation
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.
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 unicellular organism
a bacteria
a non living organism
Explanation
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.
Which of these are you most likely to see on the inside of a unicellular organism?
organelles
organs
cells
a digestive system like a humans
Explanation
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.
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:
a plant-like unicellular organism
a plant
an animal-like unicellular organism
an animal
Explanation
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.
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 unicellular organism
a multicellular organism
a nonliving single cell
a multicellular nonliving germ
Explanation
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.