Which characteristic do single-celled organisms and multicellular organisms have in common?

Both have a way to get rid of waste materials.

Why do multicellular organisms need transport systems?

Have cells that are not able to Not able to exchange gases.

Which info would help a scientist know if an organism is unicellular or multicellular?

how many types of cells are in the organism

Which is a function of the cardiovascular system?

To transport gases throughout the body.

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Human Body and Cells

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Answers

1
Which body system processes foods into a useable source or energy?
digestive
skeletal
nervous
circulatory
2
Which characteristic do single-celled organisms and multicellular organisms have in common?
Both perform all life processed within one cell.
Both are able to make food from sunlight.
Both have a way to get rid of waste materials.
Both have specialized functions for each life process.
3
Which example best shows structures that make up the digestive system in the human body?
heart, blood, vessels
brain, spinal cord, nerves
nose, trachea, lungs
esophagus, stomach, intestines
4
Why do multicellular organisms need transport systems?
Require more energy to survive than single-celled.
Unable to grow and survive.
Have cells that are not able to Not able to exchange gases.
Need food from outside sources.
5
Which body system sends electrical signals to all other body systems?
Circulatory
Muscular
Digestive
Nervous
6
Which is an example of a single-celled organism?
worm
fish
amoeba
insect
7
Which statement best describes a bacterial cell?
Contains different kinds of cells.
Contains more than one cell.
Is part of a larger organism.
Is a complete organism.
8
Which info would help a scientist know if an organism is unicellular or multicellular?
what the organism eats
how many types of cells are in the organism
how fast the organism grows
size of the cells
9
Which system of the human body provides protection to most of the major organs?
Skeletal
Respiratory
Muscular
Circulatory
10
Which is a function of the cardiovascular system?
To provide structural support for the body.
To move water throughout the body.
To transport gases throughout the body.
To eliminate waste from the body.

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