Organisms Question Preview (ID: 30432)
Single-celled And Multicellular Organisms.
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Which organism is best classified as a single-celled organism?
a) bacteria
b) grasshopper
c) pine needle
d) kangaroo
Which is an example of a single-celled organism?
a) fungi
b) human
c) fish
d) tree
Which best describes the main job of most cells in a multicellular organism?
a) Cells work together to keep the organism alive.
b) Cells work to keep themselves alive.
c) Cells work to release needed materials.
d) Cells work to store unneeded materials.
How are rabbits different from bacteria?
a) Rabbits need multiple cells to complete all functions of life and bacteria need only a single cell.
b) Rabbits need only a single cell to complete all functions of life and bacteria need multiple cells to survive.
c) Rabbits need multiple cells to complete all functions of life and bacteria need no cells.
d) Rabbits need only a single cell to complete all functions of life and bacteria need no cells to survive.
In what way are humans and bacteria alike?
a) They are both living organisms.
b) They are both non-living organisms.
c) They are both single-celled organisms.
d) They are both multicellular organisms.
Which organism can perform all functions of life within one cell?
a) amoeba
b) grass
c) butterfly
d) mushroom
Which best explains why an amoeba can survive without specialized cells?
a) They are able to survive because they can carry out all functions of life within a single cell.
b) They are able to survive with the help of other organisms.
c) They are able to survive with the help of specialized cells.
d) They are not able to survive because they don't have specialized cells.
Why do humans require many different types of cells to survive?
a) Human cells are specialized and work independently to perform different functions.
b) Human cells are identical and work together to perform the same function.
c) Human cells are specialized and work together to perform the same function.
d) Human cells are identical and work independently to perform different functions.
Which best explains why animals need many cells?
a) to perform all the functions necessary for life
b) to produce their own food
c) to remove waste materials
d) to take in carbon dioxide and release oxygen
Which statement describes the cellular make-up of a deer?
a) Deer are made of many cells that are specialized to carry out different life processes
b) Deer are made of one cell that carries out all different life processes
c) Deer are made of one cell that carries out one life process
d) Deer are not living organisms so they do not need cells.
Which is a characteristic of bacteria?
a) able to survive as a single cell
b) large in size
c) found only in one particular environment
d) made up of many different cells working together
Which best describes how single-celled and multicellular organisms are similar?
a) Both require energy to survive.
b) Both require fresh water to survive.
c) Both require direct sunlight to survive.
d) Both rely on many other cells to survive.
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