Unicellular and Multicellular Organisms Review

Students examined the smaller structures of living things and non-living things. Which of the following observations provides evidence that the smaller parts of living things, and not the non-living things, are cells? Smaller parts of living things --

• are tightly packed together with almost no space between them

• carry out functions that sustain life such as respiration

• are uniform in size and structure

• cannot be seen with the unaided eye but require a microscope

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What is a way in which scientists can determine if a newly discovered object should be classified as living or nonliving?

• guess

• look for cells

• use a microscope

• count how many organisms

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__________ organisms are composed of different kinds of cells.

• cell

• organisms

• multicellular

• functions

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Which of the following statements is TRUE about cells?

• Cells are made up of smaller living things, called organelles.

• For something to be alive, it must be made of many cells.

• Cells are the smallest unit that can be considered alive.

• Only groups of cells that function together are actually alive.

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What sort of evidence must be gathered to support the idea that all living things are composed of cells?

• Comparisons should be made between non-living things and living things to determine any similarities in their structure.

• Samples of many kinds of living things should be examined under a microscope to identify the presence of cells.

• The functions of cells from many different living things should be monitored to see if they are identical.

• Non-living things should be examined to verify that the smaller parts of which they are composed are not cells.

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Organisms can be either unicellular or ___________________.

• Life

• Not Living

• Cells

• Multicellular

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Organisms that consist of many cells.

• Cells

• Unicellular

• Multicellular

• Organism

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Organisms that consists of a single cell.

• Cell

• Unicellular

• Multicellular

• Organism

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All __________________ are composed of cells.

• Cells

• Organisms

• Structures

• Unicellular

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Any living thing...

• Cell

• Unicellular

• Multicellular

• Organism

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